6939604656 has 30 divisors (see below), whose sum is σ = 19421255100. Its totient is φ = 2313201504.

The previous prime is 6939604627. The next prime is 6939604687. The reversal of 6939604656 is 6564069396.

It is a happy number.

6939604656 is a `hidden beast` number, since 6 + 93 + 96 + 0 + 465 + 6 = 666.

It is a super-2 number, since 2×6939604656² = 96316225563153756672, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 24095706 + ... + 24095993.

It is an arithmetic number, because the mean of its divisors is an integer number (647375170).

Almost surely, 2^6939604656 is an apocalyptic number.

It is an amenable number.

6939604656 is an abundant number, since it is smaller than the sum of its proper divisors (12481650444).

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

6939604656 is a wasteful number, since it uses less digits than its factorization.

6939604656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48191713 (or 48191704 counting only the distinct ones).

The product of its (nonzero) digits is 6298560, while the sum is 54.

The square root of 6939604656 is about 83304.2895414156. The cubic root of 6939604656 is about 1907.4137539383.

The spelling of 6939604656 in words is "six billion, nine hundred thirty-nine million, six hundred four thousand, six hundred fifty-six".