27981835596 has 72 divisors (see below), whose sum is σ = 83097587664. Its totient is φ = 7827085440.

The previous prime is 27981835573. The next prime is 27981835603. The reversal of 27981835596 is 69553818972.

27981835596 is a `hidden beast` number, since 2 + 7 + 9 + 8 + 1 + 8 + 35 + 596 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2712591 + ... + 2722886.

It is an arithmetic number, because the mean of its divisors is an integer number (1154133162).

Almost surely, 2^27981835596 is an apocalyptic number.

27981835596 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

27981835596 is an abundant number, since it is smaller than the sum of its proper divisors (55115752068).

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

27981835596 is a wasteful number, since it uses less digits than its factorization.

27981835596 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5435511 (or 5435506 counting only the distinct ones).

The product of its digits is 32659200, while the sum is 63.

The spelling of 27981835596 in words is "twenty-seven billion, nine hundred eighty-one million, eight hundred thirty-five thousand, five hundred ninety-six".