188638012200 has 96 divisors (see below), whose sum is σ = 637939481760. Its totient is φ = 45730425600.

The previous prime is 188638012159. The next prime is 188638012243. The reversal of 188638012200 is 2210836881.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14284159 + ... + 14297358.

It is an arithmetic number, because the mean of its divisors is an integer number (6645202935).

Almost surely, 2^188638012200 is an apocalyptic number.

188638012200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

188638012200 is an abundant number, since it is smaller than the sum of its proper divisors (449301469560).

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

188638012200 is a wasteful number, since it uses less digits than its factorization.

188638012200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28581547 (or 28581538 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 39.

The spelling of 188638012200 in words is "one hundred eighty-eight billion, six hundred thirty-eight million, twelve thousand, two hundred".