2646244273 has 2 divisors, whose sum is σ = 2646244274. Its totient is φ = 2646244272.

The previous prime is 2646244219. The next prime is 2646244301. The reversal of 2646244273 is 3724426462.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2589588544 + 56655729 = 50888^2 + 7527^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2646244273 is a prime.

It is not a weakly prime, because it can be changed into another prime (2646244213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1323122136 + 1323122137.

It is an arithmetic number, because the mean of its divisors is an integer number (1323122137).

Almost surely, 2^2646244273 is an apocalyptic number.

It is an amenable number.

2646244273 is a deficient number, since it is larger than the sum of its proper divisors (1).

2646244273 is an equidigital number, since it uses as much as digits as its factorization.

2646244273 is an evil number, because the sum of its binary digits is even.

The product of its digits is 387072, while the sum is 40.

The square root of 2646244273 is about 51441.6589254274. The cubic root of 2646244273 is about 1383.1734488590.

The spelling of 2646244273 in words is "two billion, six hundred forty-six million, two hundred forty-four thousand, two hundred seventy-three".