8956978764 has 48 divisors (see below), whose sum is σ = 21015417696. Its totient is φ = 2969164800.

The previous prime is 8956978729. The next prime is 8956978837. The reversal of 8956978764 is 4678796598.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1699894 + ... + 1705154.

It is an arithmetic number, because the mean of its divisors is an integer number (437821202).

Almost surely, 2^8956978764 is an apocalyptic number.

It is an amenable number.

8956978764 is an abundant number, since it is smaller than the sum of its proper divisors (12058438932).

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

8956978764 is a wasteful number, since it uses less digits than its factorization.

8956978764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6026 (or 6024 counting only the distinct ones).

The product of its digits is 182891520, while the sum is 69.

The square root of 8956978764 is about 94641.3163686981. The cubic root of 8956978764 is about 2076.7641658342.

The spelling of 8956978764 in words is "eight billion, nine hundred fifty-six million, nine hundred seventy-eight thousand, seven hundred sixty-four".