18382218404 has 12 divisors (see below), whose sum is σ = 35093326128. Its totient is φ = 8355553800.

The previous prime is 18382218391. The next prime is 18382218419. The reversal of 18382218404 is 40481228381.

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, 208888802 + ... + 208888889.

It is an arithmetic number, because the mean of its divisors is an integer number (2924443844).

Almost surely, 2^18382218404 is an apocalyptic number.

It is an amenable number.

18382218404 is a deficient number, since it is larger than the sum of its proper divisors (16711107724).

18382218404 is a wasteful number, since it uses less digits than its factorization.

18382218404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 417777706 (or 417777704 counting only the distinct ones).

The product of its (nonzero) digits is 98304, while the sum is 41.

The spelling of 18382218404 in words is "eighteen billion, three hundred eighty-two million, two hundred eighteen thousand, four hundred four".