2195663263 has 2 divisors, whose sum is σ = 2195663264. Its totient is φ = 2195663262.

The previous prime is 2195663227. The next prime is 2195663269. The reversal of 2195663263 is 3623665912.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2195663263 - 2⁹ = 2195662751 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2195663269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1097831631 + 1097831632.

It is an arithmetic number, because the mean of its divisors is an integer number (1097831632).

Almost surely, 2^2195663263 is an apocalyptic number.

2195663263 is a deficient number, since it is larger than the sum of its proper divisors (1).

2195663263 is an equidigital number, since it uses as much as digits as its factorization.

2195663263 is an evil number, because the sum of its binary digits is even.

The product of its digits is 349920, while the sum is 43.

The square root of 2195663263 is about 46857.9050214582. The cubic root of 2195663263 is about 1299.7362902961.

The spelling of 2195663263 in words is "two billion, one hundred ninety-five million, six hundred sixty-three thousand, two hundred sixty-three".