13731981818352 has 40 divisors (see below), whose sum is σ = 40542041559936. Its totient is φ = 3923423376576.

The previous prime is 13731981818351. The next prime is 13731981818389. The reversal of 13731981818352 is 25381818913731.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13731981818351) 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, 20434496418 + ... + 20434497089.

Almost surely, 2^{13731981818352} is an apocalyptic number.

13731981818352 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13731981818352 is an abundant number, since it is smaller than the sum of its proper divisors (26810059741584).

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

13731981818352 is a wasteful number, since it uses less digits than its factorization.

13731981818352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40868993525 (or 40868993519 counting only the distinct ones).

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

The spelling of 13731981818352 in words is "thirteen trillion, seven hundred thirty-one billion, nine hundred eighty-one million, eight hundred eighteen thousand, three hundred fifty-two".