27727727275 has 6 divisors (see below), whose sum is σ = 34382381852. Its totient is φ = 22182181800.

The previous prime is 27727727267. The next prime is 27727727309. The reversal of 27727727275 is 57272772772.

It is not a de Polignac number, because 27727727275 - 2³ = 27727727267 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 554554521 + ... + 554554570.

Almost surely, 2^27727727275 is an apocalyptic number.

27727727275 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

27727727275 is a deficient number, since it is larger than the sum of its proper divisors (6654654577).

27727727275 is a wasteful number, since it uses less digits than its factorization.

27727727275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1109109101 (or 1109109096 counting only the distinct ones).

The product of its digits is 9411920, while the sum is 55.

The spelling of 27727727275 in words is "twenty-seven billion, seven hundred twenty-seven million, seven hundred twenty-seven thousand, two hundred seventy-five".