27285688018 has 16 divisors (see below), whose sum is σ = 41055880320. Its totient is φ = 13600420000.

The previous prime is 27285688013. The next prime is 27285688019. The reversal of 27285688018 is 81088658272.

It is a self number, because there is not a number n which added to its sum of digits gives 27285688018.

It is not an unprimeable number, because it can be changed into a prime (27285688013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4161843 + ... + 4168393.

It is an arithmetic number, because the mean of its divisors is an integer number (2565992520).

Almost surely, 2^27285688018 is an apocalyptic number.

27285688018 is a deficient number, since it is larger than the sum of its proper divisors (13770192302).

27285688018 is a wasteful number, since it uses less digits than its factorization.

27285688018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12713.

The product of its (nonzero) digits is 3440640, while the sum is 55.

The spelling of 27285688018 in words is "twenty-seven billion, two hundred eighty-five million, six hundred eighty-eight thousand, eighteen".