685343256583 has 8 divisors (see below), whose sum is σ = 689197852800. Its totient is φ = 681488948088.

The previous prime is 685343256571. The next prime is 685343256593. The reversal of 685343256583 is 385652343586.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 685343256583 - 2⁵ = 685343256551 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (685343256593) 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 in 7 ways as a sum of consecutive naturals, for example, 6271510 + ... + 6379852.

It is an arithmetic number, because the mean of its divisors is an integer number (86149731600).

Almost surely, 2^685343256583 is an apocalyptic number.

685343256583 is a deficient number, since it is larger than the sum of its proper divisors (3854596217).

685343256583 is a wasteful number, since it uses less digits than its factorization.

685343256583 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143861.

The product of its digits is 62208000, while the sum is 58.

The spelling of 685343256583 in words is "six hundred eighty-five billion, three hundred forty-three million, two hundred fifty-six thousand, five hundred eighty-three".