18895231074912 has 192 divisors, whose sum is σ = 52987635993600. Its totient is φ = 5878756016640.

The previous prime is 18895231074899. The next prime is 18895231074947. The reversal of 18895231074912 is 21947013259881.

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, 32928763 + ... + 33497669.

It is an arithmetic number, because the mean of its divisors is an integer number (275977270800).

Almost surely, 2^{18895231074912} is an apocalyptic number.

18895231074912 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 18895231074912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26493817996800).

18895231074912 is an abundant number, since it is smaller than the sum of its proper divisors (34092404918688).

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

18895231074912 is a wasteful number, since it uses less digits than its factorization.

18895231074912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 569209 (or 569201 counting only the distinct ones).

The product of its (nonzero) digits is 8709120, while the sum is 60.

The spelling of 18895231074912 in words is "eighteen trillion, eight hundred ninety-five billion, two hundred thirty-one million, seventy-four thousand, nine hundred twelve".