13138818881250 has 48 divisors (see below), whose sum is σ = 32844945038976. Its totient is φ = 3503685030000.

The previous prime is 13138818881233. The next prime is 13138818881257. The reversal of 13138818881250 is 5218881883131.

It is not an unprimeable number, because it can be changed into a prime (13138818881257) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 350349754 + ... + 350387253.

It is an arithmetic number, because the mean of its divisors is an integer number (684269688312).

Almost surely, 2^{13138818881250} is an apocalyptic number.

13138818881250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13138818881250 is an abundant number, since it is smaller than the sum of its proper divisors (19706126157726).

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

13138818881250 is an frugal number, since it uses more digits than its factorization.

13138818881250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 700737037 (or 700737017 counting only the distinct ones).

The product of its (nonzero) digits is 2949120, while the sum is 57.

The spelling of 13138818881250 in words is "thirteen trillion, one hundred thirty-eight billion, eight hundred eighteen million, eight hundred eighty-one thousand, two hundred fifty".