18582218404 has 24 divisors (see below), whose sum is σ = 32724336960. Its totient is φ = 9232484064.

The previous prime is 18582218341. The next prime is 18582218483. The reversal of 18582218404 is 40481228581.

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, 1060297 + ... + 1077679.

It is an arithmetic number, because the mean of its divisors is an integer number (1363514040).

Almost surely, 2^18582218404 is an apocalyptic number.

It is an amenable number.

18582218404 is a deficient number, since it is larger than the sum of its proper divisors (14142118556).

18582218404 is a wasteful number, since it uses less digits than its factorization.

18582218404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19059 (or 19057 counting only the distinct ones).

The product of its (nonzero) digits is 163840, while the sum is 43.

The spelling of 18582218404 in words is "eighteen billion, five hundred eighty-two million, two hundred eighteen thousand, four hundred four".