27686494704 has 40 divisors (see below), whose sum is σ = 78025577472. Its totient is φ = 8389846720.

The previous prime is 27686494687. The next prime is 27686494721. The reversal of 27686494704 is 40749468672.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (27686494687) and next prime (27686494721).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26217744 + ... + 26218799.

Almost surely, 2^27686494704 is an apocalyptic number.

27686494704 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

27686494704 is an abundant number, since it is smaller than the sum of its proper divisors (50339082768).

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

27686494704 is a wasteful number, since it uses less digits than its factorization.

27686494704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52436565 (or 52436559 counting only the distinct ones).

The product of its (nonzero) digits is 16257024, while the sum is 57.

The spelling of 27686494704 in words is "twenty-seven billion, six hundred eighty-six million, four hundred ninety-four thousand, seven hundred four".