18495198707 has 2 divisors, whose sum is σ = 18495198708. Its totient is φ = 18495198706.

The previous prime is 18495198653. The next prime is 18495198763. The reversal of 18495198707 is 70789159481.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18495198707 - 2⁶ = 18495198643 is a prime.

It is a super-2 number, since 2×18495198707² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (18492198707) 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, 9247599353 + 9247599354.

It is an arithmetic number, because the mean of its divisors is an integer number (9247599354).

Almost surely, 2^18495198707 is an apocalyptic number.

18495198707 is a deficient number, since it is larger than the sum of its proper divisors (1).

18495198707 is an equidigital number, since it uses as much as digits as its factorization.

18495198707 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5080320, while the sum is 59.

The spelling of 18495198707 in words is "eighteen billion, four hundred ninety-five million, one hundred ninety-eight thousand, seven hundred seven".