12033879917 has 2 divisors, whose sum is σ = 12033879918. Its totient is φ = 12033879916.

The previous prime is 12033879911. The next prime is 12033879941. The reversal of 12033879917 is 71997833021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9670558921 + 2363320996 = 98339^2 + 48614^2 .

It is an emirp because it is prime and its reverse (71997833021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12033879917 - 2²⁴ = 12017102701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12033879911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6016939958 + 6016939959.

It is an arithmetic number, because the mean of its divisors is an integer number (6016939959).

Almost surely, 2^12033879917 is an apocalyptic number.

It is an amenable number.

12033879917 is a deficient number, since it is larger than the sum of its proper divisors (1).

12033879917 is an equidigital number, since it uses as much as digits as its factorization.

12033879917 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 571536, while the sum is 50.

The spelling of 12033879917 in words is "twelve billion, thirty-three million, eight hundred seventy-nine thousand, nine hundred seventeen".