27727012018 has 16 divisors (see below), whose sum is σ = 43782805440. Its totient is φ = 13132854000.

The previous prime is 27727011989. The next prime is 27727012031. The reversal of 27727012018 is 81021072772.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 815968 + ... + 849268.

It is an arithmetic number, because the mean of its divisors is an integer number (2736425340).

Almost surely, 2^27727012018 is an apocalyptic number.

27727012018 is a deficient number, since it is larger than the sum of its proper divisors (16055793422).

27727012018 is a wasteful number, since it uses less digits than its factorization.

27727012018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55233.

The product of its (nonzero) digits is 21952, while the sum is 37.

The spelling of 27727012018 in words is "twenty-seven billion, seven hundred twenty-seven million, twelve thousand, eighteen".