27747551204 has 12 divisors (see below), whose sum is σ = 48562144428. Its totient is φ = 13872652800.

The previous prime is 27747551191. The next prime is 27747551243. The reversal of 27747551204 is 40215574772.

It can be written as a sum of positive squares in 2 ways, for example, as 9604000000 + 18143551204 = 98000^2 + 134698^2 .

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, 223817 + ... + 324944.

It is an arithmetic number, because the mean of its divisors is an integer number (4046845369).

Almost surely, 2^27747551204 is an apocalyptic number.

It is an amenable number.

27747551204 is a deficient number, since it is larger than the sum of its proper divisors (20814593224).

27747551204 is a wasteful number, since it uses less digits than its factorization.

27747551204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 561406 (or 561404 counting only the distinct ones).

The product of its (nonzero) digits is 548800, while the sum is 44.

The spelling of 27747551204 in words is "twenty-seven billion, seven hundred forty-seven million, five hundred fifty-one thousand, two hundred four".