188385239232 has 84 divisors (see below), whose sum is σ = 543285258360. Its totient is φ = 62409802752.

The previous prime is 188385239227. The next prime is 188385239233. The reversal of 188385239232 is 232932583881.

It is a happy number.

188385239232 is a `hidden beast` number, since 1 + 8 + 8 + 385 + 23 + 9 + 232 = 666.

It is not an unprimeable number, because it can be changed into a prime (188385239233) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 909357 + ... + 1097132.

Almost surely, 2^188385239232 is an apocalyptic number.

188385239232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

188385239232 is an abundant number, since it is smaller than the sum of its proper divisors (354900019128).

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

188385239232 is a wasteful number, since it uses less digits than its factorization.

188385239232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2006670 (or 2006657 counting only the distinct ones).

The product of its digits is 4976640, while the sum is 54.

The spelling of 188385239232 in words is "one hundred eighty-eight billion, three hundred eighty-five million, two hundred thirty-nine thousand, two hundred thirty-two".