13146426261317 has 2 divisors, whose sum is σ = 13146426261318. Its totient is φ = 13146426261316.

The previous prime is 13146426261313. The next prime is 13146426261329. The reversal of 13146426261317 is 71316262464131.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8946984304801 + 4199441956516 = 2991151^2 + 2049254^2 .

It is a cyclic number.

It is not a de Polignac number, because 13146426261317 - 2² = 13146426261313 is a prime.

It is a super-4 number, since 4×13146426261317⁴ (a number of 54 digits) contains 4444 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13146426261313) 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, 6573213130658 + 6573213130659.

It is an arithmetic number, because the mean of its divisors is an integer number (6573213130659).

Almost surely, 2^{13146426261317} is an apocalyptic number.

It is an amenable number.

13146426261317 is a deficient number, since it is larger than the sum of its proper divisors (1).

13146426261317 is an equidigital number, since it uses as much as digits as its factorization.

13146426261317 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 870912, while the sum is 47.

The spelling of 13146426261317 in words is "thirteen trillion, one hundred forty-six billion, four hundred twenty-six million, two hundred sixty-one thousand, three hundred seventeen".