12513666679 has 2 divisors, whose sum is σ = 12513666680. Its totient is φ = 12513666678.

The previous prime is 12513666673. The next prime is 12513666709. The reversal of 12513666679 is 97666631521.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12513666679 - 2⁹ = 12513666167 is a prime.

It is a super-2 number, since 2×12513666679² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12513666673) 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, 6256833339 + 6256833340.

It is an arithmetic number, because the mean of its divisors is an integer number (6256833340).

Almost surely, 2^12513666679 is an apocalyptic number.

12513666679 is a deficient number, since it is larger than the sum of its proper divisors (1).

12513666679 is an equidigital number, since it uses as much as digits as its factorization.

12513666679 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2449440, while the sum is 52.

The spelling of 12513666679 in words is "twelve billion, five hundred thirteen million, six hundred sixty-six thousand, six hundred seventy-nine".