18010475227 has 2 divisors, whose sum is σ = 18010475228. Its totient is φ = 18010475226.

The previous prime is 18010475207. The next prime is 18010475261. The reversal of 18010475227 is 72257401081.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18010475227 is a prime.

It is not a weakly prime, because it can be changed into another prime (18010475207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9005237613 + 9005237614.

It is an arithmetic number, because the mean of its divisors is an integer number (9005237614).

Almost surely, 2^18010475227 is an apocalyptic number.

18010475227 is a deficient number, since it is larger than the sum of its proper divisors (1).

18010475227 is an equidigital number, since it uses as much as digits as its factorization.

18010475227 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31360, while the sum is 37.

The spelling of 18010475227 in words is "eighteen billion, ten million, four hundred seventy-five thousand, two hundred twenty-seven".