12568669793 has 2 divisors, whose sum is σ = 12568669794. Its totient is φ = 12568669792.

The previous prime is 12568669747. The next prime is 12568669913. The reversal of 12568669793 is 39796686521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12475102864 + 93566929 = 111692^2 + 9673^2 .

It is an emirp because it is prime and its reverse (39796686521) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12568669793 is a prime.

It is not a weakly prime, because it can be changed into another prime (12568629793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6284334896 + 6284334897.

It is an arithmetic number, because the mean of its divisors is an integer number (6284334897).

Almost surely, 2^12568669793 is an apocalyptic number.

It is an amenable number.

12568669793 is a deficient number, since it is larger than the sum of its proper divisors (1).

12568669793 is an equidigital number, since it uses as much as digits as its factorization.

12568669793 is an evil number, because the sum of its binary digits is even.

The product of its digits is 29393280, while the sum is 62.

The spelling of 12568669793 in words is "twelve billion, five hundred sixty-eight million, six hundred sixty-nine thousand, seven hundred ninety-three".