86888246864 has 20 divisors (see below), whose sum is σ = 168463500756. Its totient is φ = 43413795072.

The previous prime is 86888246857. The next prime is 86888246867. The reversal of 86888246864 is 46864288868.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 74642611264 + 12245635600 = 273208^2 + 110660^2 .

It is a junction number, because it is equal to n+sod(n) for n = 86888246794 and 86888246803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86888246867) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1871879 + ... + 1917734.

Almost surely, 2^86888246864 is an apocalyptic number.

It is an amenable number.

86888246864 is a deficient number, since it is larger than the sum of its proper divisors (81575253892).

86888246864 is a wasteful number, since it uses less digits than its factorization.

86888246864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3791054 (or 3791048 counting only the distinct ones).

The product of its digits is 226492416, while the sum is 68.

The spelling of 86888246864 in words is "eighty-six billion, eight hundred eighty-eight million, two hundred forty-six thousand, eight hundred sixty-four".