18415485804 has 24 divisors (see below), whose sum is σ = 43121310400. Its totient is φ = 6116803344.

The previous prime is 18415485733. The next prime is 18415485827. The reversal of 18415485804 is 40858451481.

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, 2707954 + ... + 2714745.

Almost surely, 2^18415485804 is an apocalyptic number.

It is an amenable number.

18415485804 is an abundant number, since it is smaller than the sum of its proper divisors (24705824596).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18415485804 is a wasteful number, since it uses less digits than its factorization.

18415485804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5422989 (or 5422987 counting only the distinct ones).

The product of its (nonzero) digits is 819200, while the sum is 48.

The spelling of 18415485804 in words is "eighteen billion, four hundred fifteen million, four hundred eighty-five thousand, eight hundred four".