18474768592 has 80 divisors (see below), whose sum is σ = 41978063232. Its totient is φ = 7711395840.

The previous prime is 18474768539. The next prime is 18474768629. The reversal of 18474768592 is 29586747481.

It is a self number, because there is not a number n which added to its sum of digits gives 18474768592.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2949528 + ... + 2955784.

Almost surely, 2^18474768592 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18474768592, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20989031616).

18474768592 is an abundant number, since it is smaller than the sum of its proper divisors (23503294640).

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

18474768592 is a wasteful number, since it uses less digits than its factorization.

18474768592 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6956 (or 6950 counting only the distinct ones).

The product of its digits is 27095040, while the sum is 61.

The spelling of 18474768592 in words is "eighteen billion, four hundred seventy-four million, seven hundred sixty-eight thousand, five hundred ninety-two".