188871842572 has 24 divisors (see below), whose sum is σ = 378468750240. Its totient is φ = 80789704320.

The previous prime is 188871842561. The next prime is 188871842597. The reversal of 188871842572 is 275248178881.

It is a self number, because there is not a number n which added to its sum of digits gives 188871842572.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6458947 + ... + 6488122.

It is an arithmetic number, because the mean of its divisors is an integer number (15769531260).

Almost surely, 2^188871842572 is an apocalyptic number.

It is an amenable number.

188871842572 is an abundant number, since it is smaller than the sum of its proper divisors (189596907668).

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

188871842572 is a wasteful number, since it uses less digits than its factorization.

188871842572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12947601 (or 12947599 counting only the distinct ones).

The product of its digits is 16056320, while the sum is 61.

The spelling of 188871842572 in words is "one hundred eighty-eight billion, eight hundred seventy-one million, eight hundred forty-two thousand, five hundred seventy-two".