2643275273 has 2 divisors, whose sum is σ = 2643275274. Its totient is φ = 2643275272.

The previous prime is 2643275251. The next prime is 2643275287. The reversal of 2643275273 is 3725723462.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2108370889 + 534904384 = 45917^2 + 23128^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2643275273 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2643275273.

It is not a weakly prime, because it can be changed into another prime (2643275203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1321637636 + 1321637637.

It is an arithmetic number, because the mean of its divisors is an integer number (1321637637).

Almost surely, 2^2643275273 is an apocalyptic number.

It is an amenable number.

2643275273 is a deficient number, since it is larger than the sum of its proper divisors (1).

2643275273 is an equidigital number, since it uses as much as digits as its factorization.

2643275273 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 423360, while the sum is 41.

The square root of 2643275273 is about 51412.7928924310. The cubic root of 2643275273 is about 1382.6559634037.

The spelling of 2643275273 in words is "two billion, six hundred forty-three million, two hundred seventy-five thousand, two hundred seventy-three".