27256478244 has 12 divisors (see below), whose sum is σ = 63598449264. Its totient is φ = 9085492744.

The previous prime is 27256478209. The next prime is 27256478321. The reversal of 27256478244 is 44287465272.

It is a tau number, because it is divible by the number of its divisors (12).

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, 1135686582 + ... + 1135686605.

It is an arithmetic number, because the mean of its divisors is an integer number (5299870772).

Almost surely, 2^27256478244 is an apocalyptic number.

It is an amenable number.

27256478244 is an abundant number, since it is smaller than the sum of its proper divisors (36341971020).

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

27256478244 is a wasteful number, since it uses less digits than its factorization.

27256478244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2271373194 (or 2271373192 counting only the distinct ones).

The product of its digits is 6021120, while the sum is 51.

The spelling of 27256478244 in words is "twenty-seven billion, two hundred fifty-six million, four hundred seventy-eight thousand, two hundred forty-four".