13256642207 has 2 divisors, whose sum is σ = 13256642208. Its totient is φ = 13256642206.

The previous prime is 13256642141. The next prime is 13256642213. The reversal of 13256642207 is 70224665231.

13256642207 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13256642207 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13256642257) 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, 6628321103 + 6628321104.

It is an arithmetic number, because the mean of its divisors is an integer number (6628321104).

Almost surely, 2^13256642207 is an apocalyptic number.

13256642207 is a deficient number, since it is larger than the sum of its proper divisors (1).

13256642207 is an equidigital number, since it uses as much as digits as its factorization.

13256642207 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120960, while the sum is 38.

The spelling of 13256642207 in words is "thirteen billion, two hundred fifty-six million, six hundred forty-two thousand, two hundred seven".