12036921633 has 24 divisors (see below), whose sum is σ = 18973487520. Its totient is φ = 7292712960.

The previous prime is 12036921619. The next prime is 12036921643. The reversal of 12036921633 is 33612963021.

It is a happy number.

12036921633 is a `hidden beast` number, since 12 + 0 + 3 + 6 + 9 + 2 + 1 + 633 = 666.

12036921633 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12036921633 - 2¹⁸ = 12036659489 is a prime.

It is a super-3 number, since 3×12036921633³ (a number of 31 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (12036921643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 311310 + ... + 347832.

It is an arithmetic number, because the mean of its divisors is an integer number (790561980).

Almost surely, 2^12036921633 is an apocalyptic number.

It is an amenable number.

12036921633 is a deficient number, since it is larger than the sum of its proper divisors (6936565887).

12036921633 is a wasteful number, since it uses less digits than its factorization.

12036921633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39869 (or 39866 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 36.

The spelling of 12036921633 in words is "twelve billion, thirty-six million, nine hundred twenty-one thousand, six hundred thirty-three".