188205428604456 has 48 divisors (see below), whose sum is σ = 539706743795700. Its totient is φ = 59044840346112.

The previous prime is 188205428604433. The next prime is 188205428604497. The reversal of 188205428604456 is 654406824502881.

188205428604456 is a `hidden beast` number, since 1 + 8 + 8 + 2 + 0 + 542 + 86 + 0 + 4 + 4 + 5 + 6 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 181220328476100 + 6985100128356 = 13461810^2 + 2642934^2 .

It is a hoax number, since the sum of its digits (63) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 188205428604393 and 188205428604402.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 76881301311 + ... + 76881303758.

Almost surely, 2^{188205428604456} is an apocalyptic number.

It is an amenable number.

188205428604456 is an abundant number, since it is smaller than the sum of its proper divisors (351501315191244).

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

188205428604456 is a wasteful number, since it uses less digits than its factorization.

188205428604456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153762605098 (or 153762605091 counting only the distinct ones).

The product of its (nonzero) digits is 117964800, while the sum is 63.

The spelling of 188205428604456 in words is "one hundred eighty-eight trillion, two hundred five billion, four hundred twenty-eight million, six hundred four thousand, four hundred fifty-six".