13289736987 has 10 divisors (see below), whose sum is σ = 19852570188. Its totient is φ = 8859824604.

The previous prime is 13289736917. The next prime is 13289736989. The reversal of 13289736987 is 78963798231.

It is not a de Polignac number, because 13289736987 - 2³⁰ = 12215995163 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13289736989) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 82035333 + ... + 82035494.

Almost surely, 2^13289736987 is an apocalyptic number.

13289736987 is a deficient number, since it is larger than the sum of its proper divisors (6562833201).

13289736987 is an equidigital number, since it uses as much as digits as its factorization.

13289736987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164070839 (or 164070830 counting only the distinct ones).

The product of its digits is 27433728, while the sum is 63.

The spelling of 13289736987 in words is "thirteen billion, two hundred eighty-nine million, seven hundred thirty-six thousand, nine hundred eighty-seven".