13987282187 has 2 divisors, whose sum is σ = 13987282188. Its totient is φ = 13987282186.

The previous prime is 13987282159. The next prime is 13987282189. The reversal of 13987282187 is 78128278931.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13987282187 is a prime.

Together with 13987282189, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (13987282189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6993641093 + 6993641094.

It is an arithmetic number, because the mean of its divisors is an integer number (6993641094).

Almost surely, 2^13987282187 is an apocalyptic number.

13987282187 is a deficient number, since it is larger than the sum of its proper divisors (1).

13987282187 is an equidigital number, since it uses as much as digits as its factorization.

13987282187 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2709504, while the sum is 56.

The spelling of 13987282187 in words is "thirteen billion, nine hundred eighty-seven million, two hundred eighty-two thousand, one hundred eighty-seven".