86686633668668 has 48 divisors (see below), whose sum is σ = 166188950865504. Its totient is φ = 39237493693440.

The previous prime is 86686633668667. The next prime is 86686633668703.

86686633668668 is nontrivially palindromic in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 86686633668668.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86686633668667) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10031696 + ... + 16553192.

It is an arithmetic number, because the mean of its divisors is an integer number (3462269809698).

Almost surely, 2^{86686633668668} is an apocalyptic number.

It is an amenable number.

86686633668668 is a deficient number, since it is larger than the sum of its proper divisors (79502317196836).

86686633668668 is a wasteful number, since it uses less digits than its factorization.

86686633668668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6522782 (or 6522780 counting only the distinct ones).

The product of its digits is 61917364224, while the sum is 86.

The spelling of 86686633668668 in words is "eighty-six trillion, six hundred eighty-six billion, six hundred thirty-three million, six hundred sixty-eight thousand, six hundred sixty-eight".