18112507392 has 320 divisors, whose sum is σ = 58139136000. Its totient is φ = 5003550720.

The previous prime is 18112507381. The next prime is 18112507433. The reversal of 18112507392 is 29370521181.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 18112507392.

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, 16331734 + ... + 16332842.

It is an arithmetic number, because the mean of its divisors is an integer number (181684800).

Almost surely, 2^18112507392 is an apocalyptic number.

18112507392 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18112507392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29069568000).

18112507392 is an abundant number, since it is smaller than the sum of its proper divisors (40026628608).

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

18112507392 is an equidigital number, since it uses as much as digits as its factorization.

18112507392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1182 (or 1152 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 39.

The spelling of 18112507392 in words is "eighteen billion, one hundred twelve million, five hundred seven thousand, three hundred ninety-two".