18983018344 has 32 divisors (see below), whose sum is σ = 36311771520. Its totient is φ = 9301349376.

The previous prime is 18983018333. The next prime is 18983018357. The reversal of 18983018344 is 44381038981.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11697 + ... + 195199.

It is an arithmetic number, because the mean of its divisors is an integer number (1134742860).

Almost surely, 2^18983018344 is an apocalyptic number.

It is an amenable number.

18983018344 is a deficient number, since it is larger than the sum of its proper divisors (17328753176).

18983018344 is a wasteful number, since it uses less digits than its factorization.

18983018344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183769 (or 183765 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 49.

The spelling of 18983018344 in words is "eighteen billion, nine hundred eighty-three million, eighteen thousand, three hundred forty-four".