232957489820 has 48 divisors (see below), whose sum is σ = 541649904768. Its totient is φ = 83447453760.

The previous prime is 232957489759. The next prime is 232957489907. The reversal of 232957489820 is 28984759232.

It is a self number, because there is not a number n which added to its sum of digits gives 232957489820.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7887482 + ... + 7916961.

It is an arithmetic number, because the mean of its divisors is an integer number (11284373016).

Almost surely, 2^232957489820 is an apocalyptic number.

232957489820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

232957489820 is an abundant number, since it is smaller than the sum of its proper divisors (308692414948).

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

232957489820 is a wasteful number, since it uses less digits than its factorization.

232957489820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15804530 (or 15804528 counting only the distinct ones).

The product of its (nonzero) digits is 17418240, while the sum is 59.

The spelling of 232957489820 in words is "two hundred thirty-two billion, nine hundred fifty-seven million, four hundred eighty-nine thousand, eight hundred twenty".