27747871055 has 16 divisors (see below), whose sum is σ = 33494295744. Its totient is φ = 22067159040.

The previous prime is 27747871033. The next prime is 27747871093. The reversal of 27747871055 is 55017874772.

It is a happy number.

It is not a de Polignac number, because 27747871055 - 2²⁶ = 27680762191 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 27747870988 and 27747871006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3492047 + ... + 3499983.

It is an arithmetic number, because the mean of its divisors is an integer number (2093393484).

Almost surely, 2^27747871055 is an apocalyptic number.

27747871055 is a deficient number, since it is larger than the sum of its proper divisors (5746424689).

27747871055 is a wasteful number, since it uses less digits than its factorization.

27747871055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11986.

The product of its (nonzero) digits is 3841600, while the sum is 53.

The spelling of 27747871055 in words is "twenty-seven billion, seven hundred forty-seven million, eight hundred seventy-one thousand, fifty-five".