18474470574 has 64 divisors (see below), whose sum is σ = 43168536576. Its totient is φ = 5160996864.

The previous prime is 18474470549. The next prime is 18474470587. The reversal of 18474470574 is 47507447481.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2271964 + ... + 2280080.

It is an arithmetic number, because the mean of its divisors is an integer number (674508384).

Almost surely, 2^18474470574 is an apocalyptic number.

18474470574 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 18474470574, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21584268288).

18474470574 is an abundant number, since it is smaller than the sum of its proper divisors (24694066002).

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

18474470574 is a wasteful number, since it uses less digits than its factorization.

18474470574 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9329.

The product of its (nonzero) digits is 3512320, while the sum is 51.

The spelling of 18474470574 in words is "eighteen billion, four hundred seventy-four million, four hundred seventy thousand, five hundred seventy-four".