682686630449 has 2 divisors, whose sum is σ = 682686630450. Its totient is φ = 682686630448.

The previous prime is 682686630427. The next prime is 682686630473. The reversal of 682686630449 is 944036686286.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 439038760000 + 243647870449 = 662600^2 + 493607^2 .

It is a cyclic number.

It is not a de Polignac number, because 682686630449 - 2²⁰ = 682685581873 is a prime.

It is a super-2 number, since 2×682686630449² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 682686630391 and 682686630400.

It is not a weakly prime, because it can be changed into another prime (682686630419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 341343315224 + 341343315225.

It is an arithmetic number, because the mean of its divisors is an integer number (341343315225).

Almost surely, 2^682686630449 is an apocalyptic number.

It is an amenable number.

682686630449 is a deficient number, since it is larger than the sum of its proper divisors (1).

682686630449 is an equidigital number, since it uses as much as digits as its factorization.

682686630449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 71663616, while the sum is 62.

The spelling of 682686630449 in words is "six hundred eighty-two billion, six hundred eighty-six million, six hundred thirty thousand, four hundred forty-nine".