18334258418508 has 96 divisors (see below), whose sum is σ = 46374516840960. Its totient is φ = 5615163509760.

The previous prime is 18334258418501. The next prime is 18334258418513. The reversal of 18334258418508 is 80581485243381.

It is a happy number.

It is a super-2 number, since 2×18334258418508² (a number of 27 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (60) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (18334258418501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15926418 + ... + 17038758.

It is an arithmetic number, because the mean of its divisors is an integer number (483067883760).

Almost surely, 2^{18334258418508} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18334258418508, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23187258420480).

18334258418508 is an abundant number, since it is smaller than the sum of its proper divisors (28040258422452).

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

18334258418508 is a wasteful number, since it uses less digits than its factorization.

18334258418508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1114287 (or 1114285 counting only the distinct ones).

The product of its (nonzero) digits is 29491200, while the sum is 60.

The spelling of 18334258418508 in words is "eighteen trillion, three hundred thirty-four billion, two hundred fifty-eight million, four hundred eighteen thousand, five hundred eight".