27728574327 has 12 divisors (see below), whose sum is σ = 40465297600. Its totient is φ = 18295141248.

The previous prime is 27728574253. The next prime is 27728574329. The reversal of 27728574327 is 72347582772.

27728574327 is a `hidden beast` number, since 27 + 7 + 28 + 574 + 3 + 27 = 666.

It is not a de Polignac number, because 27728574327 - 2²⁰ = 27727525751 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27728574329) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15880327 + ... + 15882072.

Almost surely, 2^27728574327 is an apocalyptic number.

27728574327 is a deficient number, since it is larger than the sum of its proper divisors (12736723273).

27728574327 is a wasteful number, since it uses less digits than its factorization.

27728574327 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31762502 (or 31762499 counting only the distinct ones).

The product of its digits is 9219840, while the sum is 54.

The spelling of 27728574327 in words is "twenty-seven billion, seven hundred twenty-eight million, five hundred seventy-four thousand, three hundred twenty-seven".