685410483391 has 2 divisors, whose sum is σ = 685410483392. Its totient is φ = 685410483390.

The previous prime is 685410483389. The next prime is 685410483419. The reversal of 685410483391 is 193384014586.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 685410483391 - 2¹ = 685410483389 is a prime.

Together with 685410483389, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (685410483341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 342705241695 + 342705241696.

It is an arithmetic number, because the mean of its divisors is an integer number (342705241696).

Almost surely, 2^685410483391 is an apocalyptic number.

685410483391 is a deficient number, since it is larger than the sum of its proper divisors (1).

685410483391 is an equidigital number, since it uses as much as digits as its factorization.

685410483391 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2488320, while the sum is 52.

The spelling of 685410483391 in words is "six hundred eighty-five billion, four hundred ten million, four hundred eighty-three thousand, three hundred ninety-one".