2644072273 has 2 divisors, whose sum is σ = 2644072274. Its totient is φ = 2644072272.

The previous prime is 2644072259. The next prime is 2644072307. The reversal of 2644072273 is 3722704462.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2597737024 + 46335249 = 50968^2 + 6807^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2644072273 is a prime.

It is a super-2 number, since 2×2644072273² = 13982236369694773058, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2644072973) 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, 1322036136 + 1322036137.

It is an arithmetic number, because the mean of its divisors is an integer number (1322036137).

Almost surely, 2^2644072273 is an apocalyptic number.

It is an amenable number.

2644072273 is a deficient number, since it is larger than the sum of its proper divisors (1).

2644072273 is an equidigital number, since it uses as much as digits as its factorization.

2644072273 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 112896, while the sum is 37.

The square root of 2644072273 is about 51420.5432974021. The cubic root of 2644072273 is about 1382.7949155183.

The spelling of 2644072273 in words is "two billion, six hundred forty-four million, seventy-two thousand, two hundred seventy-three".