33261428352 has 32 divisors (see below), whose sum is σ = 88350670080. Its totient is φ = 11087142656.

The previous prime is 33261428297. The next prime is 33261428359. The reversal of 33261428352 is 25382416233.

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×33261428352² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 33261428352.

It is not an unprimeable number, because it can be changed into a prime (33261428359) by changing a digit.

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, 43308768 + ... + 43309535.

It is an arithmetic number, because the mean of its divisors is an integer number (2760958440).

Almost surely, 2^33261428352 is an apocalyptic number.

33261428352 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

33261428352 is an abundant number, since it is smaller than the sum of its proper divisors (55089241728).

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

33261428352 is an equidigital number, since it uses as much as digits as its factorization.

33261428352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86618320 (or 86618308 counting only the distinct ones).

The product of its digits is 207360, while the sum is 39.

The spelling of 33261428352 in words is "thirty-three billion, two hundred sixty-one million, four hundred twenty-eight thousand, three hundred fifty-two".