18479214768 has 90 divisors (see below), whose sum is σ = 55551744684. Its totient is φ = 5277892032.

The previous prime is 18479214713. The next prime is 18479214779. The reversal of 18479214768 is 86741297481.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 6591255 + ... + 6594057.

Almost surely, 2^18479214768 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 18479214768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27775872342).

18479214768 is an abundant number, since it is smaller than the sum of its proper divisors (37072529916).

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

18479214768 is an frugal number, since it uses more digits than its factorization.

18479214768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5631 (or 2815 counting only the distinct ones).

The product of its digits is 5419008, while the sum is 57.

The spelling of 18479214768 in words is "eighteen billion, four hundred seventy-nine million, two hundred fourteen thousand, seven hundred sixty-eight".