12685017685 has 8 divisors (see below), whose sum is σ = 15223114656. Its totient is φ = 10147285200.

The previous prime is 12685017679. The next prime is 12685017739. The reversal of 12685017685 is 58671058621.

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

It is not a de Polignac number, because 12685017685 - 2³ = 12685017677 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 7591 + ... + 159460.

It is an arithmetic number, because the mean of its divisors is an integer number (1902889332).

Almost surely, 2^12685017685 is an apocalyptic number.

It is an amenable number.

12685017685 is a deficient number, since it is larger than the sum of its proper divisors (2538096971).

12685017685 is a wasteful number, since it uses less digits than its factorization.

12685017685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182243.

The product of its (nonzero) digits is 806400, while the sum is 49.

The spelling of 12685017685 in words is "twelve billion, six hundred eighty-five million, seventeen thousand, six hundred eighty-five".