12683307906 has 24 divisors (see below), whose sum is σ = 27752588604. Its totient is φ = 4185909600.

The previous prime is 12683307877. The next prime is 12683307911. The reversal of 12683307906 is 60970338621.

It can be written as a sum of positive squares in 2 ways, for example, as 12590859681 + 92448225 = 112209^2 + 9615^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3486441 + ... + 3490076.

Almost surely, 2^12683307906 is an apocalyptic number.

12683307906 is an abundant number, since it is smaller than the sum of its proper divisors (15069280698).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12683307906 is a wasteful number, since it uses less digits than its factorization.

12683307906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6976626 (or 6976623 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 45.

The spelling of 12683307906 in words is "twelve billion, six hundred eighty-three million, three hundred seven thousand, nine hundred six".