13994646587 has 2 divisors, whose sum is σ = 13994646588. Its totient is φ = 13994646586.

The previous prime is 13994646559. The next prime is 13994646599. The reversal of 13994646587 is 78564649931.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13994646587 - 2²⁸ = 13726211131 is a prime.

It is not a weakly prime, because it can be changed into another prime (13994646527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6997323293 + 6997323294.

It is an arithmetic number, because the mean of its divisors is an integer number (6997323294).

Almost surely, 2^13994646587 is an apocalyptic number.

13994646587 is a deficient number, since it is larger than the sum of its proper divisors (1).

13994646587 is an equidigital number, since it uses as much as digits as its factorization.

13994646587 is an evil number, because the sum of its binary digits is even.

The product of its digits is 39191040, while the sum is 62.

The spelling of 13994646587 in words is "thirteen billion, nine hundred ninety-four million, six hundred forty-six thousand, five hundred eighty-seven".