685999999586 has 32 divisors (see below), whose sum is σ = 1127922098688. Its totient is φ = 310325523840.

The previous prime is 685999999549. The next prime is 685999999639.

It is a happy number.

685999999586 is nontrivially palindromic in base 10.

685999999586 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 685999999495 and 685999999504.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17607800 + ... + 17646716.

It is an arithmetic number, because the mean of its divisors is an integer number (35247565584).

Almost surely, 2^685999999586 is an apocalyptic number.

685999999586 is a deficient number, since it is larger than the sum of its proper divisors (441922099102).

685999999586 is a wasteful number, since it uses less digits than its factorization.

685999999586 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42746.

The product of its digits is 30611001600, while the sum is 92.

The spelling of 685999999586 in words is "six hundred eighty-five billion, nine hundred ninety-nine million, nine hundred ninety-nine thousand, five hundred eighty-six".