2168794819 has 2 divisors, whose sum is σ = 2168794820. Its totient is φ = 2168794818.

The previous prime is 2168794807. The next prime is 2168794829. The reversal of 2168794819 is 9184978612.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2168794819 - 2⁵ = 2168794787 is a prime.

It is a super-2 number, since 2×2168794819² = 9407341933842485522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2168794819.

It is not a weakly prime, because it can be changed into another prime (2168794829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1084397409 + 1084397410.

It is an arithmetic number, because the mean of its divisors is an integer number (1084397410).

Almost surely, 2^2168794819 is an apocalyptic number.

2168794819 is a deficient number, since it is larger than the sum of its proper divisors (1).

2168794819 is an equidigital number, since it uses as much as digits as its factorization.

2168794819 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1741824, while the sum is 55.

The square root of 2168794819 is about 46570.3212250034. The cubic root of 2168794819 is about 1294.4128700047.

The spelling of 2168794819 in words is "two billion, one hundred sixty-eight million, seven hundred ninety-four thousand, eight hundred nineteen".