7811882673697 has 2 divisors, whose sum is σ = 7811882673698. Its totient is φ = 7811882673696.

The previous prime is 7811882673653. The next prime is 7811882673737. The reversal of 7811882673697 is 7963762881187.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6449547843216 + 1362334830481 = 2539596^2 + 1167191^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7811882673697 is a prime.

It is a super-2 number, since 2×7811882673697² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (7811882373697) 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, 3905941336848 + 3905941336849.

It is an arithmetic number, because the mean of its divisors is an integer number (3905941336849).

Almost surely, 2^{7811882673697} is an apocalyptic number.

It is an amenable number.

7811882673697 is a deficient number, since it is larger than the sum of its proper divisors (1).

7811882673697 is an equidigital number, since it uses as much as digits as its factorization.

7811882673697 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 341397504, while the sum is 73.

The spelling of 7811882673697 in words is "seven trillion, eight hundred eleven billion, eight hundred eighty-two million, six hundred seventy-three thousand, six hundred ninety-seven".