13691500881 has 16 divisors (see below), whose sum is σ = 19106626560. Its totient is φ = 8704420560.

The previous prime is 13691500873. The next prime is 13691500913. The reversal of 13691500881 is 18800519631.

It is not a de Polignac number, because 13691500881 - 2³ = 13691500873 is a prime.

It is a super-2 number, since 2×13691500881² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13691507881) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 276901 + ... + 322578.

It is an arithmetic number, because the mean of its divisors is an integer number (1194164160).

Almost surely, 2^13691500881 is an apocalyptic number.

It is an amenable number.

13691500881 is a deficient number, since it is larger than the sum of its proper divisors (5415125679).

13691500881 is a wasteful number, since it uses less digits than its factorization.

13691500881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 599836.

The product of its (nonzero) digits is 51840, while the sum is 42.

The spelling of 13691500881 in words is "thirteen billion, six hundred ninety-one million, five hundred thousand, eight hundred eighty-one".