13991727512 has 32 divisors (see below), whose sum is σ = 29998607520. Its totient is φ = 5993187840.

The previous prime is 13991727443. The next prime is 13991727521. The reversal of 13991727512 is 21572719931.

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37088 + ... + 171344.

It is an arithmetic number, because the mean of its divisors is an integer number (937456485).

Almost surely, 2^13991727512 is an apocalyptic number.

It is an amenable number.

13991727512 is an abundant number, since it is smaller than the sum of its proper divisors (16006880008).

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

13991727512 is a wasteful number, since it uses less digits than its factorization.

13991727512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136131 (or 136127 counting only the distinct ones).

The product of its digits is 238140, while the sum is 47.

The spelling of 13991727512 in words is "thirteen billion, nine hundred ninety-one million, seven hundred twenty-seven thousand, five hundred twelve".