86689391027579 has 2 divisors, whose sum is σ = 86689391027580. Its totient is φ = 86689391027578.

The previous prime is 86689391027567. The next prime is 86689391027581. The reversal of 86689391027579 is 97572019398668.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 86689391027579 - 2¹² = 86689391023483 is a prime.

Together with 86689391027581, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (86689391027779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43344695513789 + 43344695513790.

It is an arithmetic number, because the mean of its divisors is an integer number (43344695513790).

Almost surely, 2^{86689391027579} is an apocalyptic number.

86689391027579 is a deficient number, since it is larger than the sum of its proper divisors (1).

86689391027579 is an equidigital number, since it uses as much as digits as its factorization.

86689391027579 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2469035520, while the sum is 80.

The spelling of 86689391027579 in words is "eighty-six trillion, six hundred eighty-nine billion, three hundred ninety-one million, twenty-seven thousand, five hundred seventy-nine".