8686446666044 has 72 divisors (see below), whose sum is σ = 19116890649360. Its totient is φ = 3431508240384.

The previous prime is 8686446666013. The next prime is 8686446666127. The reversal of 8686446666044 is 4406666446868.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31383269 + ... + 31658844.

It is an arithmetic number, because the mean of its divisors is an integer number (265512370130).

Almost surely, 2^{8686446666044} is an apocalyptic number.

It is an amenable number.

8686446666044 is an abundant number, since it is smaller than the sum of its proper divisors (10430443983316).

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

8686446666044 is a wasteful number, since it uses less digits than its factorization.

8686446666044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63042187 (or 63042178 counting only the distinct ones).

The product of its (nonzero) digits is 764411904, while the sum is 68.

The spelling of 8686446666044 in words is "eight trillion, six hundred eighty-six billion, four hundred forty-six million, six hundred sixty-six thousand, forty-four".