129693564659 has 2 divisors, whose sum is σ = 129693564660. Its totient is φ = 129693564658.

The previous prime is 129693564647. The next prime is 129693564667. The reversal of 129693564659 is 956465396921.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-129693564659 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 129693564595 and 129693564604.

It is not a weakly prime, because it can be changed into another prime (129693564359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64846782329 + 64846782330.

It is an arithmetic number, because the mean of its divisors is an integer number (64846782330).

Almost surely, 2^129693564659 is an apocalyptic number.

129693564659 is a deficient number, since it is larger than the sum of its proper divisors (1).

129693564659 is an equidigital number, since it uses as much as digits as its factorization.

129693564659 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 94478400, while the sum is 65.

The spelling of 129693564659 in words is "one hundred twenty-nine billion, six hundred ninety-three million, five hundred sixty-four thousand, six hundred fifty-nine".