685996699586 has 8 divisors (see below), whose sum is σ = 1122540053904. Its totient is φ = 311816681620.

The previous prime is 685996699547. The next prime is 685996699601.

685996699586 is nontrivially palindromic in base 10.

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

It is a junction number, because it is equal to n+sod(n) for n = 685996699498 and 685996699507.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15590834060 + ... + 15590834103.

It is an arithmetic number, because the mean of its divisors is an integer number (140317506738).

Almost surely, 2^685996699586 is an apocalyptic number.

685996699586 is a deficient number, since it is larger than the sum of its proper divisors (436543354318).

685996699586 is a wasteful number, since it uses less digits than its factorization.

685996699586 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31181668176.

The product of its digits is 13604889600, while the sum is 86.

The spelling of 685996699586 in words is "six hundred eighty-five billion, nine hundred ninety-six million, six hundred ninety-nine thousand, five hundred eighty-six".