2163617903 has 2 divisors, whose sum is σ = 2163617904. Its totient is φ = 2163617902.

The previous prime is 2163617899. The next prime is 2163617909. The reversal of 2163617903 is 3097163612.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2163617903 - 2² = 2163617899 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2163617909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1081808951 + 1081808952.

It is an arithmetic number, because the mean of its divisors is an integer number (1081808952).

Almost surely, 2^2163617903 is an apocalyptic number.

2163617903 is a deficient number, since it is larger than the sum of its proper divisors (1).

2163617903 is an equidigital number, since it uses as much as digits as its factorization.

2163617903 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40824, while the sum is 38.

The square root of 2163617903 is about 46514.7063088654. The cubic root of 2163617903 is about 1293.3821277174.

The spelling of 2163617903 in words is "two billion, one hundred sixty-three million, six hundred seventeen thousand, nine hundred three".