188420672944 has 80 divisors (see below), whose sum is σ = 439465523200. Its totient is φ = 78146752320.

The previous prime is 188420672927. The next prime is 188420672971. The reversal of 188420672944 is 449276024881.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 383634 + ... + 723889.

It is an arithmetic number, because the mean of its divisors is an integer number (5493319040).

Almost surely, 2^188420672944 is an apocalyptic number.

188420672944 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

188420672944 is an abundant number, since it is smaller than the sum of its proper divisors (251044850256).

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

188420672944 is a wasteful number, since it uses less digits than its factorization.

188420672944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1107583 (or 1107563 counting only the distinct ones).

The product of its (nonzero) digits is 6193152, while the sum is 55.

The spelling of 188420672944 in words is "one hundred eighty-eight billion, four hundred twenty million, six hundred seventy-two thousand, nine hundred forty-four".