717601345553 has 2 divisors, whose sum is σ = 717601345554. Its totient is φ = 717601345552.

The previous prime is 717601345429. The next prime is 717601345607. The reversal of 717601345553 is 355543106717.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 455392829584 + 262208515969 = 674828^2 + 512063^2 .

It is a cyclic number.

It is not a de Polignac number, because 717601345553 - 2²⁸ = 717332910097 is a prime.

It is a super-2 number, since 2×717601345553² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 717601345498 and 717601345507.

It is not a weakly prime, because it can be changed into another prime (717601341553) 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, 358800672776 + 358800672777.

It is an arithmetic number, because the mean of its divisors is an integer number (358800672777).

Almost surely, 2^717601345553 is an apocalyptic number.

It is an amenable number.

717601345553 is a deficient number, since it is larger than the sum of its proper divisors (1).

717601345553 is an equidigital number, since it uses as much as digits as its factorization.

717601345553 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1323000, while the sum is 47.

The spelling of 717601345553 in words is "seven hundred seventeen billion, six hundred one million, three hundred forty-five thousand, five hundred fifty-three".