8640517792 has 48 divisors (see below), whose sum is σ = 17262292320. Its totient is φ = 4256726272.

The previous prime is 8640517789. The next prime is 8640517799. The reversal of 8640517792 is 2977150468.

It is not an unprimeable number, because it can be changed into a prime (8640517799) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1029003 + ... + 1037365.

It is an arithmetic number, because the mean of its divisors is an integer number (359631090).

Almost surely, 2^8640517792 is an apocalyptic number.

It is an amenable number.

8640517792 is a deficient number, since it is larger than the sum of its proper divisors (8621774528).

8640517792 is a wasteful number, since it uses less digits than its factorization.

8640517792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8845 (or 8837 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 49.

The square root of 8640517792 is about 92954.3855447391. The cubic root of 8640517792 is about 2052.0121264833.

The spelling of 8640517792 in words is "eight billion, six hundred forty million, five hundred seventeen thousand, seven hundred ninety-two".