18318906027 has 8 divisors (see below), whose sum is σ = 27139120080. Its totient is φ = 12212604000.

The previous prime is 18318905963. The next prime is 18318906029. The reversal of 18318906027 is 72060981381.

18318906027 is a `hidden beast` number, since 1 + 8 + 31 + 8 + 9 + 0 + 602 + 7 = 666.

It is not a de Polignac number, because 18318906027 - 2⁶ = 18318905963 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18318906029) 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, 339238974 + ... + 339239027.

It is an arithmetic number, because the mean of its divisors is an integer number (3392390010).

Almost surely, 2^18318906027 is an apocalyptic number.

18318906027 is a deficient number, since it is larger than the sum of its proper divisors (8820214053).

18318906027 is an equidigital number, since it uses as much as digits as its factorization.

18318906027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 678478010 (or 678478004 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The spelling of 18318906027 in words is "eighteen billion, three hundred eighteen million, nine hundred six thousand, twenty-seven".