8645921934 has 32 divisors (see below), whose sum is σ = 18637541664. Its totient is φ = 2658061440.

The previous prime is 8645921923. The next prime is 8645921969. The reversal of 8645921934 is 4391295468.

It is a congruent number.

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, 48924 + ... + 140304.

It is an arithmetic number, because the mean of its divisors is an integer number (582423177).

Almost surely, 2^8645921934 is an apocalyptic number.

8645921934 is an abundant number, since it is smaller than the sum of its proper divisors (9991619730).

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

8645921934 is a wasteful number, since it uses less digits than its factorization.

8645921934 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92612.

The product of its digits is 1866240, while the sum is 51.

The square root of 8645921934 is about 92983.4497854322. The cubic root of 8645921934 is about 2052.4398421237.

The spelling of 8645921934 in words is "eight billion, six hundred forty-five million, nine hundred twenty-one thousand, nine hundred thirty-four".