33912763212 has 72 divisors (see below), whose sum is σ = 82707024400. Its totient is φ = 10813969152.

The previous prime is 33912763211. The next prime is 33912763219. The reversal of 33912763212 is 21236721933.

It is not an unprimeable number, because it can be changed into a prime (33912763211) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1084614 + ... + 1115442.

Almost surely, 2^33912763212 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 33912763212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41353512200).

33912763212 is an abundant number, since it is smaller than the sum of its proper divisors (48794261188).

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

33912763212 is a wasteful number, since it uses less digits than its factorization.

33912763212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31003 (or 30972 counting only the distinct ones).

The product of its digits is 81648, while the sum is 39.

The spelling of 33912763212 in words is "thirty-three billion, nine hundred twelve million, seven hundred sixty-three thousand, two hundred twelve".