86689391027568 has 40 divisors (see below), whose sum is σ = 255940106844288. Its totient is φ = 24768397436352.

The previous prime is 86689391027567. The next prime is 86689391027579. The reversal of 86689391027568 is 86572019398668.

It is a junction number, because it is equal to n+sod(n) for n = 86689391027493 and 86689391027502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86689391027567) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129002069646 + ... + 129002070317.

Almost surely, 2^{86689391027568} is an apocalyptic number.

It is an amenable number.

86689391027568 is an abundant number, since it is smaller than the sum of its proper divisors (169250715816720).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

86689391027568 is a wasteful number, since it uses less digits than its factorization.

86689391027568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258004139981 (or 258004139975 counting only the distinct ones).

The product of its (nonzero) digits is 1881169920, while the sum is 78.

The spelling of 86689391027568 in words is "eighty-six trillion, six hundred eighty-nine billion, three hundred ninety-one million, twenty-seven thousand, five hundred sixty-eight".