8680520868 has 12 divisors (see below), whose sum is σ = 20254548720. Its totient is φ = 2893506952.

The previous prime is 8680520857. The next prime is 8680520923. The reversal of 8680520868 is 8680250868.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 8680520868.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 361688358 + ... + 361688381.

It is an arithmetic number, because the mean of its divisors is an integer number (1687879060).

Almost surely, 2^8680520868 is an apocalyptic number.

It is an amenable number.

8680520868 is an abundant number, since it is smaller than the sum of its proper divisors (11574027852).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8680520868 is a wasteful number, since it uses less digits than its factorization.

8680520868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 723376746 (or 723376744 counting only the distinct ones).

The product of its (nonzero) digits is 1474560, while the sum is 51.

The square root of 8680520868 is about 93169.3129093480. The cubic root of 8680520868 is about 2055.1739911053.

The spelling of 8680520868 in words is "eight billion, six hundred eighty million, five hundred twenty thousand, eight hundred sixty-eight".