33868121538 has 8 divisors (see below), whose sum is σ = 67736243088. Its totient is φ = 11289373844.

The previous prime is 33868121491. The next prime is 33868121543. The reversal of 33868121538 is 83512186833.

It is a sphenic number, since it is the product of 3 distinct primes.

33868121538 is an admirable number.

It is a super-2 number, since 2×33868121538² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

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, 2822343456 + ... + 2822343467.

It is an arithmetic number, because the mean of its divisors is an integer number (8467030386).

Almost surely, 2^33868121538 is an apocalyptic number.

33868121538 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

33868121538 is a wasteful number, since it uses less digits than its factorization.

33868121538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5644686928.

The product of its digits is 829440, while the sum is 48.

The spelling of 33868121538 in words is "thirty-three billion, eight hundred sixty-eight million, one hundred twenty-one thousand, five hundred thirty-eight".