36686744768664 has 24 divisors (see below), whose sum is σ = 99359933748660. Its totient is φ = 12228914922864.

The previous prime is 36686744768627. The next prime is 36686744768669. The reversal of 36686744768664 is 46686744768663.

36686744768664 is a `hidden beast` number, since 3 + 6 + 6 + 8 + 6 + 7 + 4 + 476 + 86 + 64 = 666.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36686744768669) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 254769060822 + ... + 254769060965.

Almost surely, 2^{36686744768664} is an apocalyptic number.

It is an amenable number.

36686744768664 is an abundant number, since it is smaller than the sum of its proper divisors (62673188979996).

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

36686744768664 is a wasteful number, since it uses less digits than its factorization.

36686744768664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 509538121799 (or 509538121792 counting only the distinct ones).

The product of its digits is 28092137472, while the sum is 81.

Subtracting 36686744768664 from its reverse (46686744768663), we obtain a palindrome (9999999999999).

The spelling of 36686744768664 in words is "thirty-six trillion, six hundred eighty-six billion, seven hundred forty-four million, seven hundred sixty-eight thousand, six hundred sixty-four".