2163836839 has 2 divisors, whose sum is σ = 2163836840. Its totient is φ = 2163836838.

The previous prime is 2163836837. The next prime is 2163836863. The reversal of 2163836839 is 9386383612.

It is a happy number.

2163836839 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2163836839 - 2¹ = 2163836837 is a prime.

Together with 2163836837, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 2163836792 and 2163836801.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2163836833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1081918419 + 1081918420.

It is an arithmetic number, because the mean of its divisors is an integer number (1081918420).

Almost surely, 2^2163836839 is an apocalyptic number.

2163836839 is a deficient number, since it is larger than the sum of its proper divisors (1).

2163836839 is an equidigital number, since it uses as much as digits as its factorization.

2163836839 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1119744, while the sum is 49.

The square root of 2163836839 is about 46517.0596555715. The cubic root of 2163836839 is about 1293.4257519264.

The spelling of 2163836839 in words is "two billion, one hundred sixty-three million, eight hundred thirty-six thousand, eight hundred thirty-nine".