188431585152 has 64 divisors (see below), whose sum is σ = 500571413760. Its totient is φ = 62804252160.

The previous prime is 188431585123. The next prime is 188431585171. The reversal of 188431585152 is 251585134881.

It is a tau number, because it is divible by the number of its divisors (64).

It is a junction number, because it is equal to n+sod(n) for n = 188431585095 and 188431585104.

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, 5362713 + ... + 5397735.

It is an arithmetic number, because the mean of its divisors is an integer number (7821428340).

Almost surely, 2^188431585152 is an apocalyptic number.

188431585152 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

188431585152 is an abundant number, since it is smaller than the sum of its proper divisors (312139828608).

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

188431585152 is a wasteful number, since it uses less digits than its factorization.

188431585152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49051 (or 49039 counting only the distinct ones).

The product of its digits is 1536000, while the sum is 51.

The spelling of 188431585152 in words is "one hundred eighty-eight billion, four hundred thirty-one million, five hundred eighty-five thousand, one hundred fifty-two".