2644204602373 has 2 divisors, whose sum is σ = 2644204602374. Its totient is φ = 2644204602372.

The previous prime is 2644204602323. The next prime is 2644204602407. The reversal of 2644204602373 is 3732064024462.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2165509435489 + 478695166884 = 1471567^2 + 691878^2 .

It is a cyclic number.

It is not a de Polignac number, because 2644204602373 - 2⁹ = 2644204601861 is a prime.

It is a super-2 number, since 2×2644204602373² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2644204602313) 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 as a sum of consecutive naturals, namely, 1322102301186 + 1322102301187.

It is an arithmetic number, because the mean of its divisors is an integer number (1322102301187).

Almost surely, 2^{2644204602373} is an apocalyptic number.

It is an amenable number.

2644204602373 is a deficient number, since it is larger than the sum of its proper divisors (1).

2644204602373 is an equidigital number, since it uses as much as digits as its factorization.

2644204602373 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1161216, while the sum is 43.

The spelling of 2644204602373 in words is "two trillion, six hundred forty-four billion, two hundred four million, six hundred two thousand, three hundred seventy-three".