12128054400 has 768 divisors, whose sum is σ = 55367884800. Its totient is φ = 2518732800.

The previous prime is 12128054381. The next prime is 12128054429. The reversal of 12128054400 is 445082121.

12128054400 is a `hidden beast` number, since 1 + 212 + 8 + 0 + 5 + 440 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 6651889 + ... + 6653711.

It is an arithmetic number, because the mean of its divisors is an integer number (72093600).

Almost surely, 2^12128054400 is an apocalyptic number.

12128054400 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 12128054400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27683942400).

12128054400 is an abundant number, since it is smaller than the sum of its proper divisors (43239830400).

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

12128054400 is a wasteful number, since it uses less digits than its factorization.

12128054400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1874 (or 1851 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 27.

The spelling of 12128054400 in words is "twelve billion, one hundred twenty-eight million, fifty-four thousand, four hundred".