23431405904 has 20 divisors (see below), whose sum is σ = 45402677376. Its totient is φ = 11714585952.

The previous prime is 23431405903. The next prime is 23431405913. The reversal of 23431405904 is 40950413432.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23431405903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 118667 + ... + 246869.

Almost surely, 2^23431405904 is an apocalyptic number.

It is an amenable number.

23431405904 is a deficient number, since it is larger than the sum of its proper divisors (21971271472).

23431405904 is a wasteful number, since it uses less digits than its factorization.

23431405904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139634 (or 139628 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 35.

The spelling of 23431405904 in words is "twenty-three billion, four hundred thirty-one million, four hundred five thousand, nine hundred four".