27686668389696 has 84 divisors (see below), whose sum is σ = 79359583878432. Its totient is φ = 9228802485504.

The previous prime is 27686668389643. The next prime is 27686668389707. The reversal of 27686668389696 is 69698386668672.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 97551931 + ... + 97835333.

Almost surely, 2^{27686668389696} is an apocalyptic number.

It is an amenable number.

27686668389696 is an abundant number, since it is smaller than the sum of its proper divisors (51672915488736).

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

27686668389696 is a wasteful number, since it uses less digits than its factorization.

27686668389696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 453028 (or 453015 counting only the distinct ones).

The product of its digits is 81266540544, while the sum is 90.

The spelling of 27686668389696 in words is "twenty-seven trillion, six hundred eighty-six billion, six hundred sixty-eight million, three hundred eighty-nine thousand, six hundred ninety-six".