2163895043 has 2 divisors, whose sum is σ = 2163895044. Its totient is φ = 2163895042.

The previous prime is 2163894991. The next prime is 2163895049. The reversal of 2163895043 is 3405983612.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2163895043 - 2¹² = 2163890947 is a prime.

It is not a weakly prime, because it can be changed into another prime (2163895049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1081947521 + 1081947522.

It is an arithmetic number, because the mean of its divisors is an integer number (1081947522).

Almost surely, 2^2163895043 is an apocalyptic number.

2163895043 is a deficient number, since it is larger than the sum of its proper divisors (1).

2163895043 is an equidigital number, since it uses as much as digits as its factorization.

2163895043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 155520, while the sum is 41.

The square root of 2163895043 is about 46517.6852713030. The cubic root of 2163895043 is about 1293.4373489002.

The spelling of 2163895043 in words is "two billion, one hundred sixty-three million, eight hundred ninety-five thousand, forty-three".