2116827863 has 2 divisors, whose sum is σ = 2116827864. Its totient is φ = 2116827862.

The previous prime is 2116827859. The next prime is 2116827893. The reversal of 2116827863 is 3687286112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2116827863 - 2² = 2116827859 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2116827893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1058413931 + 1058413932.

It is an arithmetic number, because the mean of its divisors is an integer number (1058413932).

Almost surely, 2^2116827863 is an apocalyptic number.

2116827863 is a deficient number, since it is larger than the sum of its proper divisors (1).

2116827863 is an equidigital number, since it uses as much as digits as its factorization.

2116827863 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 193536, while the sum is 44.

The square root of 2116827863 is about 46008.9976308982. The cubic root of 2116827863 is about 1283.9906102628.

The spelling of 2116827863 in words is "two billion, one hundred sixteen million, eight hundred twenty-seven thousand, eight hundred sixty-three".