188818268925456 has 45 divisors (see below), whose sum is σ = 528429366868429. Its totient is φ = 62939368010688.

The previous prime is 188818268925449. The next prime is 188818268925491. The reversal of 188818268925456 is 654529862818881.

The square root of 188818268925456 is 13741116.

It is a perfect power (a square), and thus also a powerful number.

188818268925456 is a `hidden beast` number, since 1 + 8 + 8 + 8 + 1 + 8 + 2 + 68 + 9 + 2 + 545 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 112276487523600 + 76541781401856 = 10596060^2 + 8748816^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 164320846 + ... + 165465938.

Almost surely, 2^{188818268925456} is an apocalyptic number.

188818268925456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

188818268925456 is the 13741116-th square number.

It is an amenable number.

188818268925456 is an abundant number, since it is smaller than the sum of its proper divisors (339611097942973).

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

188818268925456 is an frugal number, since it uses more digits than its factorization.

188818268925456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2290200 (or 1145098 counting only the distinct ones).

The product of its digits is 4246732800, while the sum is 81.

The spelling of 188818268925456 in words is "one hundred eighty-eight trillion, eight hundred eighteen billion, two hundred sixty-eight million, nine hundred twenty-five thousand, four hundred fifty-six".