188385239244 has 12 divisors (see below), whose sum is σ = 439565558264. Its totient is φ = 62795079744.

The previous prime is 188385239233. The next prime is 188385239321. The reversal of 188385239244 is 442932583881.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7849384957 + ... + 7849384980.

Almost surely, 2^188385239244 is an apocalyptic number.

It is an amenable number.

188385239244 is an abundant number, since it is smaller than the sum of its proper divisors (251180319020).

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

188385239244 is a wasteful number, since it uses less digits than its factorization.

188385239244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15698769944 (or 15698769942 counting only the distinct ones).

The product of its digits is 13271040, while the sum is 57.

The spelling of 188385239244 in words is "one hundred eighty-eight billion, three hundred eighty-five million, two hundred thirty-nine thousand, two hundred forty-four".