18342568086 has 12 divisors (see below), whose sum is σ = 36685799676. Its totient is φ = 6114078780.

The previous prime is 18342568039. The next prime is 18342568087. The reversal of 18342568086 is 68086524381.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18342568087) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 304101 + ... + 359391.

It is an arithmetic number, because the mean of its divisors is an integer number (3057149973).

Almost surely, 2^18342568086 is an apocalyptic number.

18342568086 is an abundant number, since it is smaller than the sum of its proper divisors (18343231590).

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

18342568086 is an frugal number, since it uses more digits than its factorization.

18342568086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110587 (or 55296 counting only the distinct ones).

The product of its (nonzero) digits is 2211840, while the sum is 51.

The spelling of 18342568086 in words is "eighteen billion, three hundred forty-two million, five hundred sixty-eight thousand, eighty-six".