2163848749 has 2 divisors, whose sum is σ = 2163848750. Its totient is φ = 2163848748.

The previous prime is 2163848747. The next prime is 2163848803. The reversal of 2163848749 is 9478483612.

2163848749 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 can be written as a sum of positive squares in only one way, i.e., 1159402500 + 1004446249 = 34050^2 + 31693^2 .

It is a cyclic number.

It is not a de Polignac number, because 2163848749 - 2¹ = 2163848747 is a prime.

Together with 2163848747, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 2163848696 and 2163848705.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2163848747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1081924374 + 1081924375.

It is an arithmetic number, because the mean of its divisors is an integer number (1081924375).

Almost surely, 2^2163848749 is an apocalyptic number.

It is an amenable number.

2163848749 is a deficient number, since it is larger than the sum of its proper divisors (1).

2163848749 is an equidigital number, since it uses as much as digits as its factorization.

2163848749 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2322432, while the sum is 52.

The square root of 2163848749 is about 46517.1876729451. The cubic root of 2163848749 is about 1293.4281249754.

The spelling of 2163848749 in words is "two billion, one hundred sixty-three million, eight hundred forty-eight thousand, seven hundred forty-nine".