2644350813316 has 135 divisors (see below), whose sum is σ = 5106860265871. Its totient is φ = 1198040299456.

The previous prime is 2644350813281. The next prime is 2644350813317. The reversal of 2644350813316 is 6133180534462.

It is a happy number.

The square root of 2644350813316 is 1626146.

It is a perfect power (a square), and thus also a powerful number.

2644350813316 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 165917728900 + 2478433084416 = 407330^2 + 1574304^2 .

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2644350813317) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 49893411546 + ... + 49893411598.

Almost surely, 2^{2644350813316} is an apocalyptic number.

2644350813316 is the 1626146-th square number.

It is an amenable number.

2644350813316 is a deficient number, since it is larger than the sum of its proper divisors (2462509452555).

2644350813316 is an frugal number, since it uses more digits than its factorization.

2644350813316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260 (or 107 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 46.

The spelling of 2644350813316 in words is "two trillion, six hundred forty-four billion, three hundred fifty million, eight hundred thirteen thousand, three hundred sixteen".