27696866736 has 160 divisors (see below), whose sum is σ = 89362994688. Its totient is φ = 7181291520.

The previous prime is 27696866699. The next prime is 27696866761. The reversal of 27696866736 is 63766869672.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2185410 + ... + 2198046.

Almost surely, 2^27696866736 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27696866736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44681497344).

27696866736 is an abundant number, since it is smaller than the sum of its proper divisors (61666127952).

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

27696866736 is a wasteful number, since it uses less digits than its factorization.

27696866736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13259 (or 13253 counting only the distinct ones).

The product of its digits is 164602368, while the sum is 66.

The spelling of 27696866736 in words is "twenty-seven billion, six hundred ninety-six million, eight hundred sixty-six thousand, seven hundred thirty-six".