13691809732 has 12 divisors (see below), whose sum is σ = 24047169580. Its totient is φ = 6821189856.

The previous prime is 13691809709. The next prime is 13691809753. The reversal of 13691809732 is 23790819631.

It can be written as a sum of positive squares in 2 ways, for example, as 5871237376 + 7820572356 = 76624^2 + 88434^2 .

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6177507 + ... + 6179722.

Almost surely, 2^13691809732 is an apocalyptic number.

It is an amenable number.

13691809732 is a deficient number, since it is larger than the sum of its proper divisors (10355359848).

13691809732 is a wasteful number, since it uses less digits than its factorization.

13691809732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12357510 (or 12357508 counting only the distinct ones).

The product of its (nonzero) digits is 489888, while the sum is 49.

The spelling of 13691809732 in words is "thirteen billion, six hundred ninety-one million, eight hundred nine thousand, seven hundred thirty-two".