8637945064 has 64 divisors (see below), whose sum is σ = 18666086400. Its totient is φ = 3670847424.

The previous prime is 8637945047. The next prime is 8637945097. The reversal of 8637945064 is 4605497368.

It is a super-2 number, since 2×8637945064² (a number of 21 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (52) coincides with the sum of the digits of its distinct prime factors.

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, 5539917 + ... + 5541475.

It is an arithmetic number, because the mean of its divisors is an integer number (291657600).

Almost surely, 2^8637945064 is an apocalyptic number.

It is an amenable number.

8637945064 is an abundant number, since it is smaller than the sum of its proper divisors (10028141336).

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

8637945064 is a wasteful number, since it uses less digits than its factorization.

8637945064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2342 (or 2338 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 52.

The square root of 8637945064 is about 92940.5458559395. The cubic root of 8637945064 is about 2051.8084429681.

The spelling of 8637945064 in words is "eight billion, six hundred thirty-seven million, nine hundred forty-five thousand, sixty-four".