18395392044 has 96 divisors (see below), whose sum is σ = 44097177600. Its totient is φ = 5966611200.

The previous prime is 18395392031. The next prime is 18395392063. The reversal of 18395392044 is 44029359381.

It is a junction number, because it is equal to n+sod(n) for n = 18395391984 and 18395392002.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 42680509 + ... + 42680939.

It is an arithmetic number, because the mean of its divisors is an integer number (459345600).

Almost surely, 2^18395392044 is an apocalyptic number.

It is an amenable number.

18395392044 is an abundant number, since it is smaller than the sum of its proper divisors (25701785556).

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

18395392044 is a wasteful number, since it uses less digits than its factorization.

18395392044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 991 (or 989 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 48.

The spelling of 18395392044 in words is "eighteen billion, three hundred ninety-five million, three hundred ninety-two thousand, forty-four".