18274142328 has 64 divisors (see below), whose sum is σ = 49276200960. Its totient is φ = 5614060416.

The previous prime is 18274142323. The next prime is 18274142357. The reversal of 18274142328 is 82324147281.

It is a self number, because there is not a number n which added to its sum of digits gives 18274142328.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18274142323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 156601 + ... + 247127.

It is an arithmetic number, because the mean of its divisors is an integer number (769940640).

Almost surely, 2^18274142328 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 18274142328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24638100480).

18274142328 is an abundant number, since it is smaller than the sum of its proper divisors (31002058632).

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

18274142328 is a wasteful number, since it uses less digits than its factorization.

18274142328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91196 (or 91192 counting only the distinct ones).

The product of its digits is 172032, while the sum is 42.

The spelling of 18274142328 in words is "eighteen billion, two hundred seventy-four million, one hundred forty-two thousand, three hundred twenty-eight".