682768573849 has 2 divisors, whose sum is σ = 682768573850. Its totient is φ = 682768573848.

The previous prime is 682768573847. The next prime is 682768573867. The reversal of 682768573849 is 948375867286.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 433053492624 + 249715081225 = 658068^2 + 499715^2 .

It is a cyclic number.

It is not a de Polignac number, because 682768573849 - 2¹ = 682768573847 is a prime.

Together with 682768573847, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (682768573847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 341384286924 + 341384286925.

It is an arithmetic number, because the mean of its divisors is an integer number (341384286925).

Almost surely, 2^682768573849 is an apocalyptic number.

It is an amenable number.

682768573849 is a deficient number, since it is larger than the sum of its proper divisors (1).

682768573849 is an equidigital number, since it uses as much as digits as its factorization.

682768573849 is an evil number, because the sum of its binary digits is even.

The product of its digits is 975421440, while the sum is 73.

The spelling of 682768573849 in words is "six hundred eighty-two billion, seven hundred sixty-eight million, five hundred seventy-three thousand, eight hundred forty-nine".