38931949904 has 40 divisors (see below), whose sum is σ = 75717585312. Its totient is φ = 19392024960.

The previous prime is 38931949897. The next prime is 38931949919. The reversal of 38931949904 is 40994913983.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10235267 + ... + 10239069.

Almost surely, 2^38931949904 is an apocalyptic number.

It is an amenable number.

38931949904 is a deficient number, since it is larger than the sum of its proper divisors (36785635408).

38931949904 is a wasteful number, since it uses less digits than its factorization.

38931949904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6075 (or 6069 counting only the distinct ones).

The product of its (nonzero) digits is 7558272, while the sum is 59.

The spelling of 38931949904 in words is "thirty-eight billion, nine hundred thirty-one million, nine hundred forty-nine thousand, nine hundred four".