27972937288 has 16 divisors (see below), whose sum is σ = 52832100780. Its totient is φ = 13884377088.

The previous prime is 27972937273. The next prime is 27972937297. The reversal of 27972937288 is 88273927972.

It can be written as a sum of positive squares in 2 ways, for example, as 23000148964 + 4972788324 = 151658^2 + 70518^2 .

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, 12760281 + ... + 12762472.

Almost surely, 2^27972937288 is an apocalyptic number.

It is an amenable number.

27972937288 is a deficient number, since it is larger than the sum of its proper divisors (24859163492).

27972937288 is a wasteful number, since it uses less digits than its factorization.

27972937288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25522896 (or 25522892 counting only the distinct ones).

The product of its digits is 42674688, while the sum is 64.

The spelling of 27972937288 in words is "twenty-seven billion, nine hundred seventy-two million, nine hundred thirty-seven thousand, two hundred eighty-eight".