685583385586 has 16 divisors (see below), whose sum is σ = 1122398272800. Its totient is φ = 311480325280.

The previous prime is 685583385551. The next prime is 685583385587.

It is a happy number.

685583385586 is nontrivially palindromic in base 10.

It is not an unprimeable number, because it can be changed into a prime (685583385587) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7377091 + ... + 7469446.

It is an arithmetic number, because the mean of its divisors is an integer number (70149892050).

Almost surely, 2^685583385586 is an apocalyptic number.

685583385586 is a deficient number, since it is larger than the sum of its proper divisors (436814887214).

685583385586 is a wasteful number, since it uses less digits than its factorization.

685583385586 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14848649.

The product of its digits is 829440000, while the sum is 70.

The spelling of 685583385586 in words is "six hundred eighty-five billion, five hundred eighty-three million, three hundred eighty-five thousand, five hundred eighty-six".