12685878097 has 16 divisors (see below), whose sum is σ = 12986265600. Its totient is φ = 12388626000.

The previous prime is 12685878089. The next prime is 12685878109. The reversal of 12685878097 is 79087858621.

It is a cyclic number.

It is not a de Polignac number, because 12685878097 - 2³ = 12685878089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12685878077) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7211104 + ... + 7212862.

It is an arithmetic number, because the mean of its divisors is an integer number (811641600).

Almost surely, 2^12685878097 is an apocalyptic number.

It is an amenable number.

12685878097 is a deficient number, since it is larger than the sum of its proper divisors (300387503).

12685878097 is a wasteful number, since it uses less digits than its factorization.

12685878097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2556.

The product of its (nonzero) digits is 13547520, while the sum is 61.

The spelling of 12685878097 in words is "twelve billion, six hundred eighty-five million, eight hundred seventy-eight thousand, ninety-seven".