18473374386 has 48 divisors (see below), whose sum is σ = 40384824480. Its totient is φ = 6102691200.

The previous prime is 18473374327. The next prime is 18473374417. The reversal of 18473374386 is 68347337481.

It is a super-2 number, since 2×18473374386² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1477461 + ... + 1489911.

It is an arithmetic number, because the mean of its divisors is an integer number (841350510).

Almost surely, 2^18473374386 is an apocalyptic number.

18473374386 is an abundant number, since it is smaller than the sum of its proper divisors (21911450094).

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

18473374386 is a wasteful number, since it uses less digits than its factorization.

18473374386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13191 (or 13188 counting only the distinct ones).

The product of its digits is 8128512, while the sum is 54.

The spelling of 18473374386 in words is "eighteen billion, four hundred seventy-three million, three hundred seventy-four thousand, three hundred eighty-six".