23621031864 has 64 divisors (see below), whose sum is σ = 65641305600. Its totient is φ = 7870398048.

The previous prime is 23621031823. The next prime is 23621031887. The reversal of 23621031864 is 46813012632.

23621031864 is a `hidden beast` number, since 23 + 621 + 0 + 3 + 1 + 8 + 6 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 527787 + ... + 570789.

It is an arithmetic number, because the mean of its divisors is an integer number (1025645400).

Almost surely, 2^23621031864 is an apocalyptic number.

23621031864 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

23621031864 is an abundant number, since it is smaller than the sum of its proper divisors (42020273736).

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

23621031864 is a wasteful number, since it uses less digits than its factorization.

23621031864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45561 (or 45551 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The spelling of 23621031864 in words is "twenty-three billion, six hundred twenty-one million, thirty-one thousand, eight hundred sixty-four".