27747872108 has 24 divisors (see below), whose sum is σ = 52990885584. Its totient is φ = 12608460800.

The previous prime is 27747872077. The next prime is 27747872111. The reversal of 27747872108 is 80127874772.

It is a self number, because there is not a number n which added to its sum of digits gives 27747872108.

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, 30116 + ... + 237492.

It is an arithmetic number, because the mean of its divisors is an integer number (2207953566).

Almost surely, 2^27747872108 is an apocalyptic number.

It is an amenable number.

27747872108 is a deficient number, since it is larger than the sum of its proper divisors (25243013476).

27747872108 is a wasteful number, since it uses less digits than its factorization.

27747872108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210433 (or 210431 counting only the distinct ones).

The product of its (nonzero) digits is 2458624, while the sum is 53.

The spelling of 27747872108 in words is "twenty-seven billion, seven hundred forty-seven million, eight hundred seventy-two thousand, one hundred eight".