18852325728 has 96 divisors (see below), whose sum is σ = 51692256000. Its totient is φ = 6004686336.

The previous prime is 18852325717. The next prime is 18852325741. The reversal of 18852325728 is 82752325881.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×18852325728² (a number of 21 digits) contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 2444823 + ... + 2452521.

It is an arithmetic number, because the mean of its divisors is an integer number (538461000).

Almost surely, 2^18852325728 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 18852325728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25846128000).

18852325728 is an abundant number, since it is smaller than the sum of its proper divisors (32839930272).

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

18852325728 is a wasteful number, since it uses less digits than its factorization.

18852325728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8844 (or 8836 counting only the distinct ones).

The product of its digits is 2150400, while the sum is 51.

The spelling of 18852325728 in words is "eighteen billion, eight hundred fifty-two million, three hundred twenty-five thousand, seven hundred twenty-eight".