18127503127 has 2 divisors, whose sum is σ = 18127503128. Its totient is φ = 18127503126.

The previous prime is 18127503091. The next prime is 18127503139. The reversal of 18127503127 is 72130572181.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18127503127 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18127503727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9063751563 + 9063751564.

It is an arithmetic number, because the mean of its divisors is an integer number (9063751564).

Almost surely, 2^18127503127 is an apocalyptic number.

18127503127 is a deficient number, since it is larger than the sum of its proper divisors (1).

18127503127 is an equidigital number, since it uses as much as digits as its factorization.

18127503127 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23520, while the sum is 37.

The spelling of 18127503127 in words is "eighteen billion, one hundred twenty-seven million, five hundred three thousand, one hundred twenty-seven".