18495198763 has 2 divisors, whose sum is σ = 18495198764. Its totient is φ = 18495198762.

The previous prime is 18495198707. The next prime is 18495198809. The reversal of 18495198763 is 36789159481.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18495198763 is a prime.

It is not a weakly prime, because it can be changed into another prime (18495198563) 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, 9247599381 + 9247599382.

It is an arithmetic number, because the mean of its divisors is an integer number (9247599382).

Almost surely, 2^18495198763 is an apocalyptic number.

18495198763 is a deficient number, since it is larger than the sum of its proper divisors (1).

18495198763 is an equidigital number, since it uses as much as digits as its factorization.

18495198763 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13063680, while the sum is 61.

The spelling of 18495198763 in words is "eighteen billion, four hundred ninety-five million, one hundred ninety-eight thousand, seven hundred sixty-three".