18043384108 has 12 divisors (see below), whose sum is σ = 31585927240. Its totient is φ = 9018833472.

The previous prime is 18043384087. The next prime is 18043384123. The reversal of 18043384108 is 80148334081.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

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, 700413 + ... + 725716.

Almost surely, 2^18043384108 is an apocalyptic number.

It is an amenable number.

18043384108 is a deficient number, since it is larger than the sum of its proper divisors (13542543132).

18043384108 is a wasteful number, since it uses less digits than its factorization.

18043384108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1429296 (or 1429294 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 40.

The spelling of 18043384108 in words is "eighteen billion, forty-three million, three hundred eighty-four thousand, one hundred eight".