2644327163 has 2 divisors, whose sum is σ = 2644327164. Its totient is φ = 2644327162.

The previous prime is 2644327159. The next prime is 2644327199. The reversal of 2644327163 is 3617234462.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2644327163 - 2² = 2644327159 is a prime.

It is a super-2 number, since 2×2644327163² = 13984932289959257138, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2644327363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1322163581 + 1322163582.

It is an arithmetic number, because the mean of its divisors is an integer number (1322163582).

Almost surely, 2^2644327163 is an apocalyptic number.

2644327163 is a deficient number, since it is larger than the sum of its proper divisors (1).

2644327163 is an equidigital number, since it uses as much as digits as its factorization.

2644327163 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 145152, while the sum is 38.

The square root of 2644327163 is about 51423.0217217931. The cubic root of 2644327163 is about 1382.8393481503.

The spelling of 2644327163 in words is "two billion, six hundred forty-four million, three hundred twenty-seven thousand, one hundred sixty-three".