27747871056 has 40 divisors (see below), whose sum is σ = 79646668160. Its totient is φ = 9249290208.

The previous prime is 27747871033. The next prime is 27747871093. The reversal of 27747871056 is 65017874772.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 27747870993 and 27747871011.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32115160 + ... + 32116023.

It is an arithmetic number, because the mean of its divisors is an integer number (1991166704).

Almost surely, 2^27747871056 is an apocalyptic number.

It is an amenable number.

27747871056 is an abundant number, since it is smaller than the sum of its proper divisors (51898797104).

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

27747871056 is a wasteful number, since it uses less digits than its factorization.

27747871056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64231200 (or 64231188 counting only the distinct ones).

The product of its (nonzero) digits is 4609920, while the sum is 54.

The spelling of 27747871056 in words is "twenty-seven billion, seven hundred forty-seven million, eight hundred seventy-one thousand, fifty-six".