2205838643 has 2 divisors, whose sum is σ = 2205838644. Its totient is φ = 2205838642.

The previous prime is 2205838603. The next prime is 2205838681. The reversal of 2205838643 is 3468385022.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2205838643 - 2¹⁰ = 2205837619 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2205838643.

It is not a weakly prime, because it can be changed into another prime (2205838603) 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, 1102919321 + 1102919322.

It is an arithmetic number, because the mean of its divisors is an integer number (1102919322).

Almost surely, 2^2205838643 is an apocalyptic number.

2205838643 is a deficient number, since it is larger than the sum of its proper divisors (1).

2205838643 is an equidigital number, since it uses as much as digits as its factorization.

2205838643 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 276480, while the sum is 41.

The square root of 2205838643 is about 46966.3565012233. The cubic root of 2205838643 is about 1301.7409894773.

The spelling of 2205838643 in words is "two billion, two hundred five million, eight hundred thirty-eight thousand, six hundred forty-three".