7317097563661 has 2 divisors, whose sum is σ = 7317097563662. Its totient is φ = 7317097563660.

The previous prime is 7317097563637. The next prime is 7317097563679. The reversal of 7317097563661 is 1663657907137.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7093539756900 + 223557806761 = 2663370^2 + 472819^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7317097563661 is a prime.

It is a super-2 number, since 2×7317097563661² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 7317097563661.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7317097563761) 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, 3658548781830 + 3658548781831.

It is an arithmetic number, because the mean of its divisors is an integer number (3658548781831).

Almost surely, 2^{7317097563661} is an apocalyptic number.

It is an amenable number.

7317097563661 is a deficient number, since it is larger than the sum of its proper divisors (1).

7317097563661 is an equidigital number, since it uses as much as digits as its factorization.

7317097563661 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30005640, while the sum is 61.

The spelling of 7317097563661 in words is "seven trillion, three hundred seventeen billion, ninety-seven million, five hundred sixty-three thousand, six hundred sixty-one".