18579365992 has 64 divisors (see below), whose sum is σ = 40510080000. Its totient is φ = 7899353280.

The previous prime is 18579365963. The next prime is 18579366023. The reversal of 18579365992 is 29956397581.

It is a super-2 number, since 2×18579365992² (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 15 ways as a sum of consecutive naturals, for example, 61759 + ... + 202417.

It is an arithmetic number, because the mean of its divisors is an integer number (632970000).

Almost surely, 2^18579365992 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 18579365992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20255040000).

18579365992 is an abundant number, since it is smaller than the sum of its proper divisors (21930714008).

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

18579365992 is a wasteful number, since it uses less digits than its factorization.

18579365992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140774 (or 140770 counting only the distinct ones).

The product of its digits is 36741600, while the sum is 64.

The spelling of 18579365992 in words is "eighteen billion, five hundred seventy-nine million, three hundred sixty-five thousand, nine hundred ninety-two".