18342667518 has 16 divisors (see below), whose sum is σ = 41926097280. Its totient is φ = 5240762136.

The previous prime is 18342667517. The next prime is 18342667523. The reversal of 18342667518 is 81576624381.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18342667517) 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 in 7 ways as a sum of consecutive naturals, for example, 218365048 + ... + 218365131.

It is an arithmetic number, because the mean of its divisors is an integer number (2620381080).

Almost surely, 2^18342667518 is an apocalyptic number.

18342667518 is an abundant number, since it is smaller than the sum of its proper divisors (23583429762).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18342667518 is a wasteful number, since it uses less digits than its factorization.

18342667518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 436730191.

The product of its digits is 1935360, while the sum is 51.

The spelling of 18342667518 in words is "eighteen billion, three hundred forty-two million, six hundred sixty-seven thousand, five hundred eighteen".