33038337921 has 4 divisors (see below), whose sum is σ = 44051117232. Its totient is φ = 22025558612.

The previous prime is 33038337901. The next prime is 33038337923. The reversal of 33038337921 is 12973383033.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 33038337921 - 2⁵ = 33038337889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (33038337923) 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 3 ways as a sum of consecutive naturals, for example, 5506389651 + ... + 5506389656.

It is an arithmetic number, because the mean of its divisors is an integer number (11012779308).

Almost surely, 2^33038337921 is an apocalyptic number.

It is an amenable number.

33038337921 is a deficient number, since it is larger than the sum of its proper divisors (11012779311).

33038337921 is a wasteful number, since it uses less digits than its factorization.

33038337921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11012779310.

The product of its (nonzero) digits is 244944, while the sum is 42.

The spelling of 33038337921 in words is "thirty-three billion, thirty-eight million, three hundred thirty-seven thousand, nine hundred twenty-one".