18502834508340 has 1152 divisors, whose sum is σ = 67987492134912. Its totient is φ = 3674060881920.

The previous prime is 18502834508297. The next prime is 18502834508357. The reversal of 18502834508340 is 4380543820581.

It is a congruent number.

It is an unprimeable number.

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 in 383 ways as a sum of consecutive naturals, for example, 52415961604 + ... + 52415961956.

It is an arithmetic number, because the mean of its divisors is an integer number (59016920256).

Almost surely, 2^{18502834508340} is an apocalyptic number.

18502834508340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18502834508340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33993746067456).

18502834508340 is an abundant number, since it is smaller than the sum of its proper divisors (49484657626572).

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

18502834508340 is a wasteful number, since it uses less digits than its factorization.

18502834508340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 849 (or 834 counting only the distinct ones).

The product of its (nonzero) digits is 3686400, while the sum is 51.

The spelling of 18502834508340 in words is "eighteen trillion, five hundred two billion, eight hundred thirty-four million, five hundred eight thousand, three hundred forty".