27696859992 has 96 divisors (see below), whose sum is σ = 79750850400. Its totient is φ = 8664235008.

The previous prime is 27696859991. The next prime is 27696860017. The reversal of 27696859992 is 29995869672.

27696859992 is a `hidden beast` number, since 27 + 6 + 9 + 6 + 8 + 599 + 9 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a self number, because there is not a number n which added to its sum of digits gives 27696859992.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27696859991) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 70017 + ... + 245552.

It is an arithmetic number, because the mean of its divisors is an integer number (830738025).

Almost surely, 2^27696859992 is an apocalyptic number.

It is an amenable number.

27696859992 is an abundant number, since it is smaller than the sum of its proper divisors (52053990408).

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

27696859992 is a wasteful number, since it uses less digits than its factorization.

27696859992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315657 (or 315650 counting only the distinct ones).

The product of its digits is 264539520, while the sum is 72.

The spelling of 27696859992 in words is "twenty-seven billion, six hundred ninety-six million, eight hundred fifty-nine thousand, nine hundred ninety-two".