33081229780 has 12 divisors (see below), whose sum is σ = 69470582580. Its totient is φ = 13232491904.

The previous prime is 33081229777. The next prime is 33081229787. The reversal of 33081229780 is 8792218033.

It can be written as a sum of positive squares in 2 ways, for example, as 7823756304 + 25257473476 = 88452^2 + 158926^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33081229787) 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 3 ways as a sum of consecutive naturals, for example, 827030725 + ... + 827030764.

It is an arithmetic number, because the mean of its divisors is an integer number (5789215215).

Almost surely, 2^33081229780 is an apocalyptic number.

It is an amenable number.

33081229780 is an abundant number, since it is smaller than the sum of its proper divisors (36389352800).

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

33081229780 is a wasteful number, since it uses less digits than its factorization.

33081229780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1654061498 (or 1654061496 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 43.

The spelling of 33081229780 in words is "thirty-three billion, eighty-one million, two hundred twenty-nine thousand, seven hundred eighty".