715137721660013 has 2 divisors, whose sum is σ = 715137721660014. Its totient is φ = 715137721660012.

The previous prime is 715137721660007. The next prime is 715137721660057. The reversal of 715137721660013 is 310066127731517.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 558078351237124 + 157059370422889 = 23623682^2 + 12532333^2 .

It is an emirp because it is prime and its reverse (310066127731517) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 715137721660013 - 2³² = 715133426692717 is a prime.

It is a super-2 number, since 2×715137721660013² (a number of 31 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (715137721660073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 357568860830006 + 357568860830007.

It is an arithmetic number, because the mean of its divisors is an integer number (357568860830007).

Almost surely, 2^{715137721660013} is an apocalyptic number.

It is an amenable number.

715137721660013 is a deficient number, since it is larger than the sum of its proper divisors (1).

715137721660013 is an equidigital number, since it uses as much as digits as its factorization.

715137721660013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1111320, while the sum is 50.

The spelling of 715137721660013 in words is "seven hundred fifteen trillion, one hundred thirty-seven billion, seven hundred twenty-one million, six hundred sixty thousand, thirteen".