18275718044 has 6 divisors (see below), whose sum is σ = 31982506584. Its totient is φ = 9137859020.

The previous prime is 18275718023. The next prime is 18275718059. The reversal of 18275718044 is 44081757281.

It is a self number, because there is not a number n which added to its sum of digits gives 18275718044.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2284464752 + ... + 2284464759.

It is an arithmetic number, because the mean of its divisors is an integer number (5330417764).

Almost surely, 2^18275718044 is an apocalyptic number.

It is an amenable number.

18275718044 is a deficient number, since it is larger than the sum of its proper divisors (13706788540).

18275718044 is a wasteful number, since it uses less digits than its factorization.

18275718044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4568929515 (or 4568929513 counting only the distinct ones).

The product of its (nonzero) digits is 501760, while the sum is 47.

The spelling of 18275718044 in words is "eighteen billion, two hundred seventy-five million, seven hundred eighteen thousand, forty-four".