2279663563 has 2 divisors, whose sum is σ = 2279663564. Its totient is φ = 2279663562.

The previous prime is 2279663521. The next prime is 2279663599. The reversal of 2279663563 is 3653669722.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2279663563 - 2⁹ = 2279663051 is a prime.

It is not a weakly prime, because it can be changed into another prime (2279663363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1139831781 + 1139831782.

It is an arithmetic number, because the mean of its divisors is an integer number (1139831782).

Almost surely, 2^2279663563 is an apocalyptic number.

2279663563 is a deficient number, since it is larger than the sum of its proper divisors (1).

2279663563 is an equidigital number, since it uses as much as digits as its factorization.

2279663563 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2449440, while the sum is 49.

The square root of 2279663563 is about 47745.8224664734. The cubic root of 2279663563 is about 1316.1041318656.

The spelling of 2279663563 in words is "two billion, two hundred seventy-nine million, six hundred sixty-three thousand, five hundred sixty-three".