39900018904 has 32 divisors (see below), whose sum is σ = 77278285440. Its totient is φ = 19293350400.

The previous prime is 39900018883. The next prime is 39900018919. The reversal of 39900018904 is 40981000993.

39900018904 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×39900018904² (a number of 22 digits) contains 22 as substring.

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, 316384 + ... + 424144.

It is an arithmetic number, because the mean of its divisors is an integer number (2414946420).

Almost surely, 2^39900018904 is an apocalyptic number.

It is an amenable number.

39900018904 is a deficient number, since it is larger than the sum of its proper divisors (37378266536).

39900018904 is a wasteful number, since it uses less digits than its factorization.

39900018904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109291 (or 109287 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 43.

The spelling of 39900018904 in words is "thirty-nine billion, nine hundred million, eighteen thousand, nine hundred four".