33868106021 has 16 divisors (see below), whose sum is σ = 34483680000. Its totient is φ = 33258931776.

The previous prime is 33868106009. The next prime is 33868106059. The reversal of 33868106021 is 12060186833.

It is a cyclic number.

It is not a de Polignac number, because 33868106021 - 2³⁴ = 16688236837 is a prime.

It is a super-2 number, since 2×33868106021² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33868106071) 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 15 ways as a sum of consecutive naturals, for example, 10892015 + ... + 10895123.

It is an arithmetic number, because the mean of its divisors is an integer number (2155230000).

Almost surely, 2^33868106021 is an apocalyptic number.

It is an amenable number.

33868106021 is a deficient number, since it is larger than the sum of its proper divisors (615573979).

33868106021 is a wasteful number, since it uses less digits than its factorization.

33868106021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4076.

The product of its (nonzero) digits is 41472, while the sum is 38.

The spelling of 33868106021 in words is "thirty-three billion, eight hundred sixty-eight million, one hundred six thousand, twenty-one".