13687994415732 has 96 divisors (see below), whose sum is σ = 39508651429632. Its totient is φ = 3591695471616.

The previous prime is 13687994415659. The next prime is 13687994415763. The reversal of 13687994415732 is 23751449978631.

It is a super-2 number, since 2×13687994415732² (a number of 27 digits) contains 22 as substring.

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, 31599073 + ... + 32029320.

It is an arithmetic number, because the mean of its divisors is an integer number (411548452392).

Almost surely, 2^{13687994415732} is an apocalyptic number.

13687994415732 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13687994415732 is an abundant number, since it is smaller than the sum of its proper divisors (25820657013900).

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

13687994415732 is a wasteful number, since it uses less digits than its factorization.

13687994415732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63628617 (or 63628615 counting only the distinct ones).

The product of its digits is 274337280, while the sum is 69.

The spelling of 13687994415732 in words is "thirteen trillion, six hundred eighty-seven billion, nine hundred ninety-four million, four hundred fifteen thousand, seven hundred thirty-two".