683834216449 has 2 divisors, whose sum is σ = 683834216450. Its totient is φ = 683834216448.

The previous prime is 683834216437. The next prime is 683834216477. The reversal of 683834216449 is 944612438386.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 564925108225 + 118909108224 = 751615^2 + 344832^2 .

It is a cyclic number.

It is not a de Polignac number, because 683834216449 - 2⁷ = 683834216321 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 683834216393 and 683834216402.

It is not a weakly prime, because it can be changed into another prime (683834316449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 341917108224 + 341917108225.

It is an arithmetic number, because the mean of its divisors is an integer number (341917108225).

Almost surely, 2^683834216449 is an apocalyptic number.

It is an amenable number.

683834216449 is a deficient number, since it is larger than the sum of its proper divisors (1).

683834216449 is an equidigital number, since it uses as much as digits as its factorization.

683834216449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23887872, while the sum is 58.

The spelling of 683834216449 in words is "six hundred eighty-three billion, eight hundred thirty-four million, two hundred sixteen thousand, four hundred forty-nine".