18799925487392 has 24 divisors (see below), whose sum is σ = 42299832347136. Its totient is φ = 8057110923072.

The previous prime is 18799925487379. The next prime is 18799925487439. The reversal of 18799925487392 is 29378452999781.

It is a self number, because there is not a number n which added to its sum of digits gives 18799925487392.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41964119168 + ... + 41964119615.

It is an arithmetic number, because the mean of its divisors is an integer number (1762493014464).

Almost surely, 2^{18799925487392} is an apocalyptic number.

It is an amenable number.

18799925487392 is an abundant number, since it is smaller than the sum of its proper divisors (23499906859744).

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

18799925487392 is an equidigital number, since it uses as much as digits as its factorization.

18799925487392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83928238800 (or 83928238792 counting only the distinct ones).

The product of its digits is 4938071040, while the sum is 83.

The spelling of 18799925487392 in words is "eighteen trillion, seven hundred ninety-nine billion, nine hundred twenty-five million, four hundred eighty-seven thousand, three hundred ninety-two".