18318128077003 has 2 divisors, whose sum is σ = 18318128077004. Its totient is φ = 18318128077002.

The previous prime is 18318128076967. The next prime is 18318128077049. The reversal of 18318128077003 is 30077082181381.

It is a weak prime.

It is an emirp because it is prime and its reverse (30077082181381) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 18318128077003 - 2²⁵ = 18318094522571 is a prime.

It is not a weakly prime, because it can be changed into another prime (18318128077303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9159064038501 + 9159064038502.

It is an arithmetic number, because the mean of its divisors is an integer number (9159064038502).

Almost surely, 2^{18318128077003} is an apocalyptic number.

18318128077003 is a deficient number, since it is larger than the sum of its proper divisors (1).

18318128077003 is an equidigital number, since it uses as much as digits as its factorization.

18318128077003 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 451584, while the sum is 49.

The spelling of 18318128077003 in words is "eighteen trillion, three hundred eighteen billion, one hundred twenty-eight million, seventy-seven thousand, three".