27988110112 has 24 divisors (see below), whose sum is σ = 56445535692. Its totient is φ = 13652736000.

The previous prime is 27988110109. The next prime is 27988110131. The reversal of 27988110112 is 21101188972.

It can be written as a sum of positive squares in 2 ways, for example, as 27834250896 + 153859216 = 166836^2 + 12404^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10664889 + ... + 10667512.

Almost surely, 2^27988110112 is an apocalyptic number.

It is an amenable number.

27988110112 is an abundant number, since it is smaller than the sum of its proper divisors (28457425580).

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

27988110112 is a wasteful number, since it uses less digits than its factorization.

27988110112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21332452 (or 21332444 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 40.

The spelling of 27988110112 in words is "twenty-seven billion, nine hundred eighty-eight million, one hundred ten thousand, one hundred twelve".