27489271456 has 24 divisors (see below), whose sum is σ = 57303004500. Its totient is φ = 12936127488.

The previous prime is 27489271441. The next prime is 27489271463. The reversal of 27489271456 is 65417298472.

It can be written as a sum of positive squares in 2 ways, for example, as 27252727056 + 236544400 = 165084^2 + 15380^2 .

It is a junction number, because it is equal to n+sod(n) for n = 27489271397 and 27489271406.

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, 25265331 + ... + 25266418.

Almost surely, 2^27489271456 is an apocalyptic number.

It is an amenable number.

27489271456 is an abundant number, since it is smaller than the sum of its proper divisors (29813733044).

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

27489271456 is a wasteful number, since it uses less digits than its factorization.

27489271456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50531776 (or 50531768 counting only the distinct ones).

The product of its digits is 6773760, while the sum is 55.

The spelling of 27489271456 in words is "twenty-seven billion, four hundred eighty-nine million, two hundred seventy-one thousand, four hundred fifty-six".