27775570868 has 24 divisors (see below), whose sum is σ = 51957702720. Its totient is φ = 12959967680.

The previous prime is 27775570829. The next prime is 27775570877. The reversal of 27775570868 is 86807557772.

It is a self number, because there is not a number n which added to its sum of digits gives 27775570868.

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, 3678038 + ... + 3685581.

It is an arithmetic number, because the mean of its divisors is an integer number (2164904280).

Almost surely, 2^27775570868 is an apocalyptic number.

It is an amenable number.

27775570868 is a deficient number, since it is larger than the sum of its proper divisors (24182131852).

27775570868 is a wasteful number, since it uses less digits than its factorization.

27775570868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7363687 (or 7363685 counting only the distinct ones).

The product of its (nonzero) digits is 46099200, while the sum is 62.

The spelling of 27775570868 in words is "twenty-seven billion, seven hundred seventy-five million, five hundred seventy thousand, eight hundred sixty-eight".