12033879787 has 4 divisors (see below), whose sum is σ = 12052086016. Its totient is φ = 12015673560.

The previous prime is 12033879779. The next prime is 12033879791. The reversal of 12033879787 is 78797833021.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78797833021 = 91841 ⋅857981.

It is a cyclic number.

It is not a de Polignac number, because 12033879787 - 2³ = 12033879779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12033879797) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9102123 + ... + 9103444.

It is an arithmetic number, because the mean of its divisors is an integer number (3013021504).

Almost surely, 2^12033879787 is an apocalyptic number.

12033879787 is a deficient number, since it is larger than the sum of its proper divisors (18206229).

12033879787 is an equidigital number, since it uses as much as digits as its factorization.

12033879787 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18206228.

The product of its (nonzero) digits is 3556224, while the sum is 55.

The spelling of 12033879787 in words is "twelve billion, thirty-three million, eight hundred seventy-nine thousand, seven hundred eighty-seven".