2805421163 has 2 divisors, whose sum is σ = 2805421164. Its totient is φ = 2805421162.

The previous prime is 2805421139. The next prime is 2805421189. The reversal of 2805421163 is 3611245082.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2805421163 - 2⁸ = 2805420907 is a prime.

It is not a weakly prime, because it can be changed into another prime (2805421103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1402710581 + 1402710582.

It is an arithmetic number, because the mean of its divisors is an integer number (1402710582).

Almost surely, 2^2805421163 is an apocalyptic number.

2805421163 is a deficient number, since it is larger than the sum of its proper divisors (1).

2805421163 is an equidigital number, since it uses as much as digits as its factorization.

2805421163 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 2805421163 is about 52966.2266260303. The cubic root of 2805421163 is about 1410.3687922534.

The spelling of 2805421163 in words is "two billion, eight hundred five million, four hundred twenty-one thousand, one hundred sixty-three".