86258515568789 has 2 divisors, whose sum is σ = 86258515568790. Its totient is φ = 86258515568788.

The previous prime is 86258515568777. The next prime is 86258515568891. The reversal of 86258515568789 is 98786551585268.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 83326773722500 + 2931741846289 = 9128350^2 + 1712233^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86258515568789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86258515568749) 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, 43129257784394 + 43129257784395.

It is an arithmetic number, because the mean of its divisors is an integer number (43129257784395).

Almost surely, 2^{86258515568789} is an apocalyptic number.

It is an amenable number.

86258515568789 is a deficient number, since it is larger than the sum of its proper divisors (1).

86258515568789 is an equidigital number, since it uses as much as digits as its factorization.

86258515568789 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11612160000, while the sum is 83.

The spelling of 86258515568789 in words is "eighty-six trillion, two hundred fifty-eight billion, five hundred fifteen million, five hundred sixty-eight thousand, seven hundred eighty-nine".