12104488728 has 96 divisors (see below), whose sum is σ = 33700680000. Its totient is φ = 3922089984.

The previous prime is 12104488717. The next prime is 12104488751. The reversal of 12104488728 is 82788440121.

12104488728 is a `hidden beast` number, since 121 + 0 + 448 + 87 + 2 + 8 = 666.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 5324200 + ... + 5326472.

It is an arithmetic number, because the mean of its divisors is an integer number (351048750).

Almost surely, 2^12104488728 is an apocalyptic number.

12104488728 is a gapful number since it is divisible by the number (18) 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 12104488728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16850340000).

12104488728 is an abundant number, since it is smaller than the sum of its proper divisors (21596191272).

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

12104488728 is a wasteful number, since it uses less digits than its factorization.

12104488728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4321 (or 4314 counting only the distinct ones).

The product of its (nonzero) digits is 229376, while the sum is 45.

The spelling of 12104488728 in words is "twelve billion, one hundred four million, four hundred eighty-eight thousand, seven hundred twenty-eight".