188430930256 has 80 divisors (see below), whose sum is σ = 389988164160. Its totient is φ = 87889950720.

The previous prime is 188430930253. The next prime is 188430930257. The reversal of 188430930256 is 652039034881.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (188430930253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17887711 + ... + 17898241.

It is an arithmetic number, because the mean of its divisors is an integer number (4874852052).

Almost surely, 2^188430930256 is an apocalyptic number.

188430930256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 188430930256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (194994082080).

188430930256 is an abundant number, since it is smaller than the sum of its proper divisors (201557233904).

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

188430930256 is a wasteful number, since it uses less digits than its factorization.

188430930256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11132 (or 11126 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 49.

The spelling of 188430930256 in words is "one hundred eighty-eight billion, four hundred thirty million, nine hundred thirty thousand, two hundred fifty-six".