2644450040022 has 128 divisors (see below), whose sum is σ = 6313045754880. Its totient is φ = 722927462400.

The previous prime is 2644450040017. The next prime is 2644450040027. The reversal of 2644450040022 is 2200400544462.

2644450040022 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2644450040017) and next prime (2644450040027).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2644450040027) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 14370897 + ... + 14553747.

It is an arithmetic number, because the mean of its divisors is an integer number (49320669960).

Almost surely, 2^{2644450040022} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2644450040022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3156522877440).

2644450040022 is an abundant number, since it is smaller than the sum of its proper divisors (3668595714858).

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

2644450040022 is a wasteful number, since it uses less digits than its factorization.

2644450040022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183078.

The product of its (nonzero) digits is 61440, while the sum is 33.

Adding to 2644450040022 its reverse (2200400544462), we get a palindrome (4844850584484).

The spelling of 2644450040022 in words is "two trillion, six hundred forty-four billion, four hundred fifty million, forty thousand, twenty-two".