18102334128 has 80 divisors (see below), whose sum is σ = 49905377280. Its totient is φ = 5634413568.

The previous prime is 18102334127. The next prime is 18102334139. The reversal of 18102334128 is 82143320181.

It is not an unprimeable number, because it can be changed into a prime (18102334121) 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 15 ways as a sum of consecutive naturals, for example, 16293 + ... + 190971.

It is an arithmetic number, because the mean of its divisors is an integer number (623817216).

Almost surely, 2^18102334128 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 18102334128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24952688640).

18102334128 is an abundant number, since it is smaller than the sum of its proper divisors (31803043152).

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

18102334128 is a wasteful number, since it uses less digits than its factorization.

18102334128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174834 (or 174828 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 33.

The spelling of 18102334128 in words is "eighteen billion, one hundred two million, three hundred thirty-four thousand, one hundred twenty-eight".