33668421903 has 8 divisors (see below), whose sum is σ = 49879143600. Its totient is φ = 22445614584.

The previous prime is 33668421893. The next prime is 33668421929. The reversal of 33668421903 is 30912486633.

It is not a de Polignac number, because 33668421903 - 2¹³ = 33668413711 is a prime.

It is a super-2 number, since 2×33668421903² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33668421973) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 623489268 + ... + 623489321.

It is an arithmetic number, because the mean of its divisors is an integer number (6234892950).

Almost surely, 2^33668421903 is an apocalyptic number.

33668421903 is a deficient number, since it is larger than the sum of its proper divisors (16210721697).

33668421903 is a wasteful number, since it uses less digits than its factorization.

33668421903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1246978598 (or 1246978592 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 45.

The spelling of 33668421903 in words is "thirty-three billion, six hundred sixty-eight million, four hundred twenty-one thousand, nine hundred three".