1944312325728 has 96 divisors (see below), whose sum is σ = 5133333864960. Its totient is φ = 644357721600.

The previous prime is 1944312325693. The next prime is 1944312325729. The reversal of 1944312325728 is 8275232134491.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1944312325729) by changing a digit.

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, 139200601 + ... + 139214567.

It is an arithmetic number, because the mean of its divisors is an integer number (53472227760).

Almost surely, 2^{1944312325728} 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 1944312325728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2566666932480).

1944312325728 is an abundant number, since it is smaller than the sum of its proper divisors (3189021539232).

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

1944312325728 is a wasteful number, since it uses less digits than its factorization.

1944312325728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22260 (or 22252 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 51.

The spelling of 1944312325728 in words is "one trillion, nine hundred forty-four billion, three hundred twelve million, three hundred twenty-five thousand, seven hundred twenty-eight".