12046917906 has 24 divisors (see below), whose sum is σ = 26738282844. Its totient is φ = 3917696640.

The previous prime is 12046917899. The next prime is 12046917907. The reversal of 12046917906 is 60971964021.

12046917906 is a `hidden beast` number, since 12 + 0 + 469 + 179 + 0 + 6 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 11312236881 + 734681025 = 106359^2 + 27105^2 .

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12046917907) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8161131 + ... + 8162606.

Almost surely, 2^12046917906 is an apocalyptic number.

12046917906 is an abundant number, since it is smaller than the sum of its proper divisors (14691364938).

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

12046917906 is a wasteful number, since it uses less digits than its factorization.

12046917906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16323786 (or 16323783 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The spelling of 12046917906 in words is "twelve billion, forty-six million, nine hundred seventeen thousand, nine hundred six".