23931403936 has 48 divisors (see below), whose sum is σ = 51641882208. Its totient is φ = 10826323200.

The previous prime is 23931403913. The next prime is 23931403943. The reversal of 23931403936 is 63930413932.

It is a junction number, because it is equal to n+sod(n) for n = 23931403892 and 23931403901.

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, 86835 + ... + 235378.

It is an arithmetic number, because the mean of its divisors is an integer number (1075872546).

Almost surely, 2^23931403936 is an apocalyptic number.

It is an amenable number.

23931403936 is an abundant number, since it is smaller than the sum of its proper divisors (27710478272).

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

23931403936 is a wasteful number, since it uses less digits than its factorization.

23931403936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322445 (or 322437 counting only the distinct ones).

The product of its (nonzero) digits is 314928, while the sum is 43.

The spelling of 23931403936 in words is "twenty-three billion, nine hundred thirty-one million, four hundred three thousand, nine hundred thirty-six".