18801380938752 has 88 divisors (see below), whose sum is σ = 55680594384000. Its totient is φ = 6267126970368.

The previous prime is 18801380938673. The next prime is 18801380938757. The reversal of 18801380938752 is 25783908310881.

18801380938752 is a `hidden beast` number, since 18 + 80 + 1 + 380 + 93 + 87 + 5 + 2 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 18801380938752.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18801380938757) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 339985752 + ... + 340041047.

Almost surely, 2^{18801380938752} is an apocalyptic number.

18801380938752 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18801380938752 is an abundant number, since it is smaller than the sum of its proper divisors (36879213445248).

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

18801380938752 is an equidigital number, since it uses as much as digits as its factorization.

18801380938752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 680026828 (or 680026804 counting only the distinct ones).

The product of its (nonzero) digits is 23224320, while the sum is 63.

The spelling of 18801380938752 in words is "eighteen trillion, eight hundred one billion, three hundred eighty million, nine hundred thirty-eight thousand, seven hundred fifty-two".