23210637990 has 16 divisors (see below), whose sum is σ = 55705531248. Its totient is φ = 6189503456.

The previous prime is 23210637929. The next prime is 23210638001. The reversal of 23210637990 is 9973601232.

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, 386843937 + ... + 386843996.

It is an arithmetic number, because the mean of its divisors is an integer number (3481595703).

Almost surely, 2^23210637990 is an apocalyptic number.

23210637990 is an abundant number, since it is smaller than the sum of its proper divisors (32494893258).

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

23210637990 is a wasteful number, since it uses less digits than its factorization.

23210637990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 773687943.

The product of its (nonzero) digits is 122472, while the sum is 42.

The spelling of 23210637990 in words is "twenty-three billion, two hundred ten million, six hundred thirty-seven thousand, nine hundred ninety".