18117035383 has 2 divisors, whose sum is σ = 18117035384. Its totient is φ = 18117035382.

The previous prime is 18117035333. The next prime is 18117035437. The reversal of 18117035383 is 38353071181.

It is a weak prime.

It is an emirp because it is prime and its reverse (38353071181) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18117035383 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18117035333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9058517691 + 9058517692.

It is an arithmetic number, because the mean of its divisors is an integer number (9058517692).

Almost surely, 2^18117035383 is an apocalyptic number.

18117035383 is a deficient number, since it is larger than the sum of its proper divisors (1).

18117035383 is an equidigital number, since it uses as much as digits as its factorization.

18117035383 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60480, while the sum is 40.

The spelling of 18117035383 in words is "eighteen billion, one hundred seventeen million, thirty-five thousand, three hundred eighty-three".