13689059987 has 2 divisors, whose sum is σ = 13689059988. Its totient is φ = 13689059986.

The previous prime is 13689059927. The next prime is 13689059999. The reversal of 13689059987 is 78995098631.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13689059987 - 2⁸ = 13689059731 is a prime.

It is not a weakly prime, because it can be changed into another prime (13689059927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6844529993 + 6844529994.

It is an arithmetic number, because the mean of its divisors is an integer number (6844529994).

Almost surely, 2^13689059987 is an apocalyptic number.

13689059987 is a deficient number, since it is larger than the sum of its proper divisors (1).

13689059987 is an equidigital number, since it uses as much as digits as its factorization.

13689059987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 29393280, while the sum is 65.

The spelling of 13689059987 in words is "thirteen billion, six hundred eighty-nine million, fifty-nine thousand, nine hundred eighty-seven".