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# 9,223,372,036,854,775,807

The number 9,223,372,036,854,775,807 is the integer equal to 2 − 1. 

## C (programming language)

C (as in the letter ''c'') is a general-purpose, imperative computer programming language, supporting structured programming, lexical variable scope and recursion, while a static type system prevents many unintended operations.

## C date and time functions

The C date and time functions are a group of functions in the standard library of the C programming language implementing date and time manipulation operations.

## C standard library

The C standard library or libc is the standard library for the C programming language, as specified in the ANSI C standard.

## Computing

Computing is any goal-oriented activity requiring, benefiting from, or creating computers.

## Cyclotomic polynomial

In mathematics, more specifically in algebra, the nth cyclotomic polynomial, for any positive integer n, is the unique irreducible polynomial with integer coefficients that is a divisor of x^n-1 and is not a divisor of x^k-1 for any.

## Hexadecimal

In mathematics and computing, hexadecimal (also base, or hex) is a positional numeral system with a radix, or base, of 16.

## Integer

An integer (from the Latin ''integer'' meaning "whole")Integer&#x2009;'s first literal meaning in Latin is "untouched", from in ("not") plus tangere ("to touch").

## Integer (computer science)

In computer science, an integer is a datum of integral data type, a data type that represents some range of mathematical integers.

## Integer factorization

In number theory, integer factorization is the decomposition of a composite number into a product of smaller integers.

## Integer overflow

In computer programming, an integer overflow occurs when an arithmetic operation attempts to create a numeric value that is outside of the range that can be represented with a given number of bits – either larger than the maximum or lower than the minimum representable value.

## Java (programming language)

Java is a general-purpose computer-programming language that is concurrent, class-based, object-oriented, and specifically designed to have as few implementation dependencies as possible.

## Magic number (programming)

In computer programming, the term magic number has multiple meanings.

## Number

A number is a mathematical object used to count, measure and also label.

## Pointer (computer programming)

In computer science, a pointer is a programming language object that stores the memory address of another value located in computer memory.

## Power of two

In mathematics, a power of two is a number of the form where is an integer, i.e. the result of exponentiation with number two as the base and integer as the exponent.

## Sign extension

Sign extension is the operation, in computer arithmetic, of increasing the number of bits of a binary number while preserving the number's sign (positive/negative) and value.

## System time

In computer science and computer programming, system time represents a computer system's notion of the passing of time.

## Unix

Unix (trademarked as UNIX) is a family of multitasking, multiuser computer operating systems that derive from the original AT&T Unix, development starting in the 1970s at the Bell Labs research center by Ken Thompson, Dennis Ritchie, and others.

## Unix time

Unix time (also known as POSIX time or UNIX Epoch time) is a system for describing a point in time, defined as the number of seconds that have elapsed since 00:00:00 Coordinated Universal Time (UTC), Thursday, 1 January 1970,.

## Variable (computer science)

In computer programming, a variable or scalar is a storage location (identified by a memory address) paired with an associated symbolic name (an identifier), which contains some known or unknown quantity of information referred to as a value.

## X86-64

x86-64 (also known as x64, x86_64, AMD64 and Intel 64) is the 64-bit version of the x86 instruction set.

## Year 2038 problem

The Year 2038 problem relates to representing time in many digital systems as number of seconds passed since 1 January 1970 and storing it as a signed 32-bit integer.

## 64-bit computing

In computer architecture, 64-bit computing is the use of processors that have datapath widths, integer size, and memory address widths of 64 bits (eight octets).

## References

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