33081349824 has 84 divisors (see below), whose sum is σ = 94943502264. Its totient is φ = 11012954112.

The previous prime is 33081349823. The next prime is 33081349849. The reversal of 33081349824 is 42894318033.

It is a self number, because there is not a number n which added to its sum of digits gives 33081349824.

It is not an unprimeable number, because it can be changed into a prime (33081349823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 416824 + ... + 489800.

Almost surely, 2^33081349824 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 33081349824, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47471751132).

33081349824 is an abundant number, since it is smaller than the sum of its proper divisors (61862152440).

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

33081349824 is a wasteful number, since it uses less digits than its factorization.

33081349824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73782 (or 73769 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 45.

The spelling of 33081349824 in words is "thirty-three billion, eighty-one million, three hundred forty-nine thousand, eight hundred twenty-four".