12688385959 has 4 divisors (see below), whose sum is σ = 12741475680. Its totient is φ = 12635296240.

The previous prime is 12688385929. The next prime is 12688385981. The reversal of 12688385959 is 95958388621.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12688385959 - 2²¹ = 12686288807 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12688385959.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12688385909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26544502 + ... + 26544979.

It is an arithmetic number, because the mean of its divisors is an integer number (3185368920).

Almost surely, 2^12688385959 is an apocalyptic number.

12688385959 is a deficient number, since it is larger than the sum of its proper divisors (53089721).

12688385959 is an equidigital number, since it uses as much as digits as its factorization.

12688385959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53089720.

The product of its digits is 37324800, while the sum is 64.

The spelling of 12688385959 in words is "twelve billion, six hundred eighty-eight million, three hundred eighty-five thousand, nine hundred fifty-nine".