18936592044 has 24 divisors (see below), whose sum is σ = 44807712768. Its totient is φ = 6223292880.

The previous prime is 18936592021. The next prime is 18936592049. The reversal of 18936592044 is 44029563981.

It is not an unprimeable number, because it can be changed into a prime (18936592049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11112172 + ... + 11113875.

It is an arithmetic number, because the mean of its divisors is an integer number (1866988032).

Almost surely, 2^18936592044 is an apocalyptic number.

It is an amenable number.

18936592044 is an abundant number, since it is smaller than the sum of its proper divisors (25871120724).

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

18936592044 is a wasteful number, since it uses less digits than its factorization.

18936592044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22226125 (or 22226123 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 51.

The spelling of 18936592044 in words is "eighteen billion, nine hundred thirty-six million, five hundred ninety-two thousand, forty-four".