27775427816 has 16 divisors (see below), whose sum is σ = 52082490240. Its totient is φ = 13886763760.

The previous prime is 27775427807. The next prime is 27775427857. The reversal of 27775427816 is 61872457772.

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 3 ways as a sum of consecutive naturals, for example, 14231 + ... + 236121.

It is an arithmetic number, because the mean of its divisors is an integer number (3255155640).

Almost surely, 2^27775427816 is an apocalyptic number.

It is an amenable number.

27775427816 is a deficient number, since it is larger than the sum of its proper divisors (24307062424).

27775427816 is a wasteful number, since it uses less digits than its factorization.

27775427816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237544 (or 237540 counting only the distinct ones).

The product of its digits is 9219840, while the sum is 56.

The spelling of 27775427816 in words is "twenty-seven billion, seven hundred seventy-five million, four hundred twenty-seven thousand, eight hundred sixteen".