18011627027 has 2 divisors, whose sum is σ = 18011627028. Its totient is φ = 18011627026.

The previous prime is 18011626943. The next prime is 18011627131. The reversal of 18011627027 is 72072611081.

It is a weak prime.

It is an emirp because it is prime and its reverse (72072611081) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18011627027 is a prime.

It is not a weakly prime, because it can be changed into another prime (18011627327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9005813513 + 9005813514.

It is an arithmetic number, because the mean of its divisors is an integer number (9005813514).

Almost surely, 2^18011627027 is an apocalyptic number.

18011627027 is a deficient number, since it is larger than the sum of its proper divisors (1).

18011627027 is an equidigital number, since it uses as much as digits as its factorization.

18011627027 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9408, while the sum is 35.

The spelling of 18011627027 in words is "eighteen billion, eleven million, six hundred twenty-seven thousand, twenty-seven".