13531681677 has 32 divisors (see below), whose sum is σ = 18802224000. Its totient is φ = 8645978880.

The previous prime is 13531681661. The next prime is 13531681703. The reversal of 13531681677 is 77618613531.

It is a happy number.

It is not a de Polignac number, because 13531681677 - 2⁴ = 13531681661 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13531681627) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8346927 + ... + 8348547.

It is an arithmetic number, because the mean of its divisors is an integer number (587569500).

Almost surely, 2^13531681677 is an apocalyptic number.

It is an amenable number.

13531681677 is a deficient number, since it is larger than the sum of its proper divisors (5270542323).

13531681677 is a wasteful number, since it uses less digits than its factorization.

13531681677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2301.

The product of its digits is 635040, while the sum is 48.

The spelling of 13531681677 in words is "thirteen billion, five hundred thirty-one million, six hundred eighty-one thousand, six hundred seventy-seven".