12896788657 has 2 divisors, whose sum is σ = 12896788658. Its totient is φ = 12896788656.

The previous prime is 12896788613. The next prime is 12896788687. The reversal of 12896788657 is 75688769821.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12896782096 + 6561 = 113564^2 + 81^2 .

It is a cyclic number.

It is not a de Polignac number, because 12896788657 - 2⁷ = 12896788529 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12896788592 and 12896788601.

It is not a weakly prime, because it can be changed into another prime (12896788607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6448394328 + 6448394329.

It is an arithmetic number, because the mean of its divisors is an integer number (6448394329).

Almost surely, 2^12896788657 is an apocalyptic number.

It is an amenable number.

12896788657 is a deficient number, since it is larger than the sum of its proper divisors (1).

12896788657 is an equidigital number, since it uses as much as digits as its factorization.

12896788657 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 81285120, while the sum is 67.

The spelling of 12896788657 in words is "twelve billion, eight hundred ninety-six million, seven hundred eighty-eight thousand, six hundred fifty-seven".