683866668386 has 16 divisors (see below), whose sum is σ = 1120960965600. Its totient is φ = 310318925280.

The previous prime is 683866668349. The next prime is 683866668403.

It is a happy number.

683866668386 is nontrivially palindromic in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26464811 + ... + 26490638.

It is an arithmetic number, because the mean of its divisors is an integer number (70060060350).

Almost surely, 2^683866668386 is an apocalyptic number.

683866668386 is a deficient number, since it is larger than the sum of its proper divisors (437094297214).

683866668386 is a wasteful number, since it uses less digits than its factorization.

683866668386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52956049.

The product of its digits is 1719926784, while the sum is 74.

The spelling of 683866668386 in words is "six hundred eighty-three billion, eight hundred sixty-six million, six hundred sixty-eight thousand, three hundred eighty-six".