2644545116928 has 576 divisors, whose sum is σ = 8480985730560. Its totient is φ = 726979461120.

The previous prime is 2644545116923. The next prime is 2644545116959. The reversal of 2644545116928 is 8296115454462.

It is not an unprimeable number, because it can be changed into a prime (2644545116923) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 784031850 + ... + 784035222.

It is an arithmetic number, because the mean of its divisors is an integer number (14723933560).

Almost surely, 2^{2644545116928} 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 2644545116928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4240492865280).

2644545116928 is an abundant number, since it is smaller than the sum of its proper divisors (5836440613632).

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

2644545116928 is a wasteful number, since it uses less digits than its factorization.

2644545116928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3497 (or 3461 counting only the distinct ones).

The product of its digits is 16588800, while the sum is 57.

The spelling of 2644545116928 in words is "two trillion, six hundred forty-four billion, five hundred forty-five million, one hundred sixteen thousand, nine hundred twenty-eight".