27568681568 has 24 divisors (see below), whose sum is σ = 56147424480. Its totient is φ = 13309018240.

The previous prime is 27568681549. The next prime is 27568681573. The reversal of 27568681568 is 86518686572.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 27568681568.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14852888 + ... + 14854743.

It is an arithmetic number, because the mean of its divisors is an integer number (2339476020).

Almost surely, 2^27568681568 is an apocalyptic number.

It is an amenable number.

27568681568 is an abundant number, since it is smaller than the sum of its proper divisors (28578742912).

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

27568681568 is a wasteful number, since it uses less digits than its factorization.

27568681568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29707670 (or 29707662 counting only the distinct ones).

The product of its digits is 38707200, while the sum is 62.

The spelling of 27568681568 in words is "twenty-seven billion, five hundred sixty-eight million, six hundred eighty-one thousand, five hundred sixty-eight".