12708640233 has 28 divisors (see below), whose sum is σ = 19070353588. Its totient is φ = 8465264640.

The previous prime is 12708640211. The next prime is 12708640237. The reversal of 12708640233 is 33204680721.

It is a happy number.

12708640233 is a `hidden beast` number, since 1 + 2 + 7 + 0 + 8 + 640 + 2 + 3 + 3 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 8382684249 + 4325955984 = 91557^2 + 65772^2 .

It is not a de Polignac number, because 12708640233 - 2⁶ = 12708640169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12708640237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 938793 + ... + 952233.

Almost surely, 2^12708640233 is an apocalyptic number.

It is an amenable number.

12708640233 is a deficient number, since it is larger than the sum of its proper divisors (6361713355).

12708640233 is an equidigital number, since it uses as much as digits as its factorization.

12708640233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14756 (or 14741 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The spelling of 12708640233 in words is "twelve billion, seven hundred eight million, six hundred forty thousand, two hundred thirty-three".