12608647813 has 2 divisors, whose sum is σ = 12608647814. Its totient is φ = 12608647812.

The previous prime is 12608647789. The next prime is 12608647853. The reversal of 12608647813 is 31874680621.

It is a happy number.

12608647813 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10076746689 + 2531901124 = 100383^2 + 50318^2 .

It is a cyclic number.

It is not a de Polignac number, because 12608647813 - 2¹⁷ = 12608516741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12608647853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6304323906 + 6304323907.

It is an arithmetic number, because the mean of its divisors is an integer number (6304323907).

Almost surely, 2^12608647813 is an apocalyptic number.

It is an amenable number.

12608647813 is a deficient number, since it is larger than the sum of its proper divisors (1).

12608647813 is an equidigital number, since it uses as much as digits as its factorization.

12608647813 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 387072, while the sum is 46.

The spelling of 12608647813 in words is "twelve billion, six hundred eight million, six hundred forty-seven thousand, eight hundred thirteen".