685499994586 has 16 divisors (see below), whose sum is σ = 1142891931168. Its totient is φ = 305711832400.

The previous prime is 685499994527. The next prime is 685499994661.

685499994586 is nontrivially palindromic in base 10.

It is a super-3 number, since 3×685499994586³ (a number of 36 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 293952520 + ... + 293954851.

It is an arithmetic number, because the mean of its divisors is an integer number (71430745698).

Almost surely, 2^685499994586 is an apocalyptic number.

685499994586 is a deficient number, since it is larger than the sum of its proper divisors (457391936582).

685499994586 is a wasteful number, since it uses less digits than its factorization.

685499994586 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 587907437.

The product of its digits is 6046617600, while the sum is 82.

The spelling of 685499994586 in words is "six hundred eighty-five billion, four hundred ninety-nine million, nine hundred ninety-four thousand, five hundred eighty-six".