685673121376586 has 16 divisors (see below), whose sum is σ = 1187557571046336. Its totient is φ = 290830425561216.

The previous prime is 685673121376541. The next prime is 685673121376609.

685673121376586 is nontrivially palindromic in base 10.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 252456965276 + ... + 252456967991.

It is an arithmetic number, because the mean of its divisors is an integer number (74222348190396).

Almost surely, 2^{685673121376586} is an apocalyptic number.

685673121376586 is a deficient number, since it is larger than the sum of its proper divisors (501884449669750).

685673121376586 is a wasteful number, since it uses less digits than its factorization.

685673121376586 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 504913933373.

The product of its digits is 1828915200, while the sum is 74.

The spelling of 685673121376586 in words is "six hundred eighty-five trillion, six hundred seventy-three billion, one hundred twenty-one million, three hundred seventy-six thousand, five hundred eighty-six".