86897362817 has 2 divisors, whose sum is σ = 86897362818. Its totient is φ = 86897362816.

The previous prime is 86897362813. The next prime is 86897362831. The reversal of 86897362817 is 71826379868.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 86692558096 + 204804721 = 294436^2 + 14311^2 .

It is a cyclic number.

It is not a de Polignac number, because 86897362817 - 2² = 86897362813 is a prime.

It is not a weakly prime, because it can be changed into another prime (86897362813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43448681408 + 43448681409.

It is an arithmetic number, because the mean of its divisors is an integer number (43448681409).

Almost surely, 2^86897362817 is an apocalyptic number.

It is an amenable number.

86897362817 is a deficient number, since it is larger than the sum of its proper divisors (1).

86897362817 is an equidigital number, since it uses as much as digits as its factorization.

86897362817 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48771072, while the sum is 65.

The spelling of 86897362817 in words is "eighty-six billion, eight hundred ninety-seven million, three hundred sixty-two thousand, eight hundred seventeen".