13291748266217 has 2 divisors, whose sum is σ = 13291748266218. Its totient is φ = 13291748266216.

The previous prime is 13291748266211. The next prime is 13291748266231. The reversal of 13291748266217 is 71266284719231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7147179843241 + 6144568422976 = 2673421^2 + 2478824^2 .

It is a cyclic number.

It is not a de Polignac number, because 13291748266217 - 2²⁰ = 13291747217641 is a prime.

It is not a weakly prime, because it can be changed into another prime (13291748266211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6645874133108 + 6645874133109.

It is an arithmetic number, because the mean of its divisors is an integer number (6645874133109).

Almost surely, 2^{13291748266217} is an apocalyptic number.

It is an amenable number.

13291748266217 is a deficient number, since it is larger than the sum of its proper divisors (1).

13291748266217 is an equidigital number, since it uses as much as digits as its factorization.

13291748266217 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12192768, while the sum is 59.

The spelling of 13291748266217 in words is "thirteen trillion, two hundred ninety-one billion, seven hundred forty-eight million, two hundred sixty-six thousand, two hundred seventeen".