18875792755512 has 384 divisors, whose sum is σ = 66523214684160. Its totient is φ = 4688536469760.

The previous prime is 18875792755507. The next prime is 18875792755529. The reversal of 18875792755512 is 21555729757881.

18875792755512 is a `hidden beast` number, since 1 + 8 + 8 + 7 + 57 + 9 + 2 + 7 + 55 + 512 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 633337203 + ... + 633367005.

It is an arithmetic number, because the mean of its divisors is an integer number (173237538240).

Almost surely, 2^{18875792755512} is an apocalyptic number.

18875792755512 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 18875792755512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33261607342080).

18875792755512 is an abundant number, since it is smaller than the sum of its proper divisors (47647421928648).

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

18875792755512 is a wasteful number, since it uses less digits than its factorization.

18875792755512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34823 (or 34816 counting only the distinct ones).

The product of its digits is 493920000, while the sum is 72.

The spelling of 18875792755512 in words is "eighteen trillion, eight hundred seventy-five billion, seven hundred ninety-two million, seven hundred fifty-five thousand, five hundred twelve".