33139774968 has 32 divisors (see below), whose sum is σ = 82856511360. Its totient is φ = 11045648480.

The previous prime is 33139774949. The next prime is 33139774999. The reversal of 33139774968 is 86947793133.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 264133 + ... + 368843.

It is an arithmetic number, because the mean of its divisors is an integer number (2589265980).

Almost surely, 2^33139774968 is an apocalyptic number.

It is an amenable number.

33139774968 is an abundant number, since it is smaller than the sum of its proper divisors (49716736392).

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

33139774968 is a wasteful number, since it uses less digits than its factorization.

33139774968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117907 (or 117903 counting only the distinct ones).

The product of its digits is 20575296, while the sum is 60.

The spelling of 33139774968 in words is "thirty-three billion, one hundred thirty-nine million, seven hundred seventy-four thousand, nine hundred sixty-eight".