13887662699 has 2 divisors, whose sum is σ = 13887662700. Its totient is φ = 13887662698.

The previous prime is 13887662629. The next prime is 13887662707. The reversal of 13887662699 is 99626678831.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13887662699 - 2²⁰ = 13886614123 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (13887662629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6943831349 + 6943831350.

It is an arithmetic number, because the mean of its divisors is an integer number (6943831350).

Almost surely, 2^13887662699 is an apocalyptic number.

13887662699 is a deficient number, since it is larger than the sum of its proper divisors (1).

13887662699 is an equidigital number, since it uses as much as digits as its factorization.

13887662699 is an evil number, because the sum of its binary digits is even.

The product of its digits is 47029248, while the sum is 65.

The spelling of 13887662699 in words is "thirteen billion, eight hundred eighty-seven million, six hundred sixty-two thousand, six hundred ninety-nine".