27727157312 has 14 divisors (see below), whose sum is σ = 55021077918. Its totient is φ = 13863578624.

The previous prime is 27727157309. The next prime is 27727157377. The reversal of 27727157312 is 21375172772.

It can be written as a sum of positive squares in only one way, i.e., 20134474816 + 7592682496 = 141896^2 + 87136^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 216618353 + ... + 216618480.

Almost surely, 2^27727157312 is an apocalyptic number.

It is an amenable number.

27727157312 is a deficient number, since it is larger than the sum of its proper divisors (27293920606).

27727157312 is an equidigital number, since it uses as much as digits as its factorization.

27727157312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 433236845 (or 433236835 counting only the distinct ones).

The product of its digits is 288120, while the sum is 44.

The spelling of 27727157312 in words is "twenty-seven billion, seven hundred twenty-seven million, one hundred fifty-seven thousand, three hundred twelve".