18792112518 has 96 divisors (see below), whose sum is σ = 42963148800. Its totient is φ = 5928811200.

The previous prime is 18792112513. The next prime is 18792112519. The reversal of 18792112518 is 81521129781.

18792112518 is a `hidden beast` number, since 18 + 7 + 9 + 2 + 112 + 518 = 666.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18792112513) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4802983 + ... + 4806893.

It is an arithmetic number, because the mean of its divisors is an integer number (447532800).

Almost surely, 2^18792112518 is an apocalyptic number.

18792112518 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 18792112518, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21481574400).

18792112518 is an abundant number, since it is smaller than the sum of its proper divisors (24171036282).

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

18792112518 is a wasteful number, since it uses less digits than its factorization.

18792112518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4138 (or 4135 counting only the distinct ones).

The product of its digits is 80640, while the sum is 45.

The spelling of 18792112518 in words is "eighteen billion, seven hundred ninety-two million, one hundred twelve thousand, five hundred eighteen".