27708268018 has 16 divisors (see below), whose sum is σ = 42546927456. Its totient is φ = 13526231040.

The previous prime is 27708267997. The next prime is 27708268019. The reversal of 27708268018 is 81086280772.

It is not an unprimeable number, because it can be changed into a prime (27708268019) 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, 140530 + ... + 274162.

It is an arithmetic number, because the mean of its divisors is an integer number (2659182966).

Almost surely, 2^27708268018 is an apocalyptic number.

27708268018 is a deficient number, since it is larger than the sum of its proper divisors (14838659438).

27708268018 is a wasteful number, since it uses less digits than its factorization.

27708268018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136089.

The product of its (nonzero) digits is 602112, while the sum is 49.

The spelling of 27708268018 in words is "twenty-seven billion, seven hundred eight million, two hundred sixty-eight thousand, eighteen".