13696549137 has 24 divisors (see below), whose sum is σ = 20959867656. Its totient is φ = 8588906496.

The previous prime is 13696549117. The next prime is 13696549187. The reversal of 13696549137 is 73194569631.

13696549137 is a `hidden beast` number, since 1 + 3 + 6 + 96 + 549 + 1 + 3 + 7 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 5165440641 + 8531108496 = 71871^2 + 92364^2 .

It is not a de Polignac number, because 13696549137 - 2¹¹ = 13696547089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13696549117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 246693 + ... + 297069.

It is an arithmetic number, because the mean of its divisors is an integer number (873327819).

Almost surely, 2^13696549137 is an apocalyptic number.

13696549137 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

13696549137 is a deficient number, since it is larger than the sum of its proper divisors (7263318519).

13696549137 is a wasteful number, since it uses less digits than its factorization.

13696549137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52177 (or 52174 counting only the distinct ones).

The product of its digits is 3674160, while the sum is 54.

The spelling of 13696549137 in words is "thirteen billion, six hundred ninety-six million, five hundred forty-nine thousand, one hundred thirty-seven".