27777500275 has 12 divisors (see below), whose sum is σ = 39364686352. Its totient is φ = 19047428640.

The previous prime is 27777500239. The next prime is 27777500293. The reversal of 27777500275 is 57200577772.

It is not a de Polignac number, because 27777500275 - 2¹¹ = 27777498227 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 11 ways as a sum of consecutive naturals, for example, 79364112 + ... + 79364461.

Almost surely, 2^27777500275 is an apocalyptic number.

27777500275 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

27777500275 is a deficient number, since it is larger than the sum of its proper divisors (11587186077).

27777500275 is a wasteful number, since it uses less digits than its factorization.

27777500275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158728590 (or 158728585 counting only the distinct ones).

The product of its (nonzero) digits is 1680700, while the sum is 49.

The spelling of 27777500275 in words is "twenty-seven billion, seven hundred seventy-seven million, five hundred thousand, two hundred seventy-five".