7985468645197 has 2 divisors, whose sum is σ = 7985468645198. Its totient is φ = 7985468645196.

The previous prime is 7985468645177. The next prime is 7985468645201. The reversal of 7985468645197 is 7915468645897.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7737637918921 + 247830726276 = 2781661^2 + 497826^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7985468645197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7985468645177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3992734322598 + 3992734322599.

It is an arithmetic number, because the mean of its divisors is an integer number (3992734322599).

Almost surely, 2^{7985468645197} is an apocalyptic number.

It is an amenable number.

7985468645197 is a deficient number, since it is larger than the sum of its proper divisors (1).

7985468645197 is an equidigital number, since it uses as much as digits as its factorization.

7985468645197 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3657830400, while the sum is 79.

The spelling of 7985468645197 in words is "seven trillion, nine hundred eighty-five billion, four hundred sixty-eight million, six hundred forty-five thousand, one hundred ninety-seven".