86597679643 has 2 divisors, whose sum is σ = 86597679644. Its totient is φ = 86597679642.

The previous prime is 86597679541. The next prime is 86597679691. The reversal of 86597679643 is 34697679568.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 86597679643 - 2⁹ = 86597679131 is a prime.

It is not a weakly prime, because it can be changed into another prime (86597679043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43298839821 + 43298839822.

It is an arithmetic number, because the mean of its divisors is an integer number (43298839822).

Almost surely, 2^86597679643 is an apocalyptic number.

86597679643 is a deficient number, since it is larger than the sum of its proper divisors (1).

86597679643 is an equidigital number, since it uses as much as digits as its factorization.

86597679643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 411505920, while the sum is 70.

The spelling of 86597679643 in words is "eighty-six billion, five hundred ninety-seven million, six hundred seventy-nine thousand, six hundred forty-three".