27678085185 has 16 divisors (see below), whose sum is σ = 44603536320. Its totient is φ = 14655445440.

The previous prime is 27678085129. The next prime is 27678085223. The reversal of 27678085185 is 58158087672.

It is not a de Polignac number, because 27678085185 - 2⁶ = 27678085121 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6635346 + ... + 6639515.

It is an arithmetic number, because the mean of its divisors is an integer number (2787721020).

Almost surely, 2^27678085185 is an apocalyptic number.

It is an amenable number.

27678085185 is a deficient number, since it is larger than the sum of its proper divisors (16925451135).

27678085185 is a wasteful number, since it uses less digits than its factorization.

27678085185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13275008.

The product of its (nonzero) digits is 7526400, while the sum is 57.

The spelling of 27678085185 in words is "twenty-seven billion, six hundred seventy-eight million, eighty-five thousand, one hundred eighty-five".