18115112927 has 2 divisors, whose sum is σ = 18115112928. Its totient is φ = 18115112926.

The previous prime is 18115112903. The next prime is 18115112941. The reversal of 18115112927 is 72921151181.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18115112927 - 2³⁰ = 17041371103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18115112987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9057556463 + 9057556464.

It is an arithmetic number, because the mean of its divisors is an integer number (9057556464).

Almost surely, 2^18115112927 is an apocalyptic number.

18115112927 is a deficient number, since it is larger than the sum of its proper divisors (1).

18115112927 is an equidigital number, since it uses as much as digits as its factorization.

18115112927 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10080, while the sum is 38.

The spelling of 18115112927 in words is "eighteen billion, one hundred fifteen million, one hundred twelve thousand, nine hundred twenty-seven".