1843813841 has 2 divisors, whose sum is σ = 1843813842. Its totient is φ = 1843813840.

The previous prime is 1843813819. The next prime is 1843813847. The reversal of 1843813841 is 1483183481.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1742227600 + 101586241 = 41740^2 + 10079^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1843813841 is a prime.

It is not a weakly prime, because it can be changed into another prime (1843813847) 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, 921906920 + 921906921.

It is an arithmetic number, because the mean of its divisors is an integer number (921906921).

Almost surely, 2^1843813841 is an apocalyptic number.

It is an amenable number.

1843813841 is a deficient number, since it is larger than the sum of its proper divisors (1).

1843813841 is an equidigital number, since it uses as much as digits as its factorization.

1843813841 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 73728, while the sum is 41.

The square root of 1843813841 is about 42939.6534802041. The cubic root of 1843813841 is about 1226.2311855622.

The spelling of 1843813841 in words is "one billion, eight hundred forty-three million, eight hundred thirteen thousand, eight hundred forty-one".