33131285248 has 144 divisors (see below), whose sum is σ = 70927617600. Its totient is φ = 15416360960.

The previous prime is 33131285191. The next prime is 33131285267. The reversal of 33131285248 is 84258213133.

It is a self number, because there is not a number n which added to its sum of digits gives 33131285248.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 27089565 + ... + 27090787.

It is an arithmetic number, because the mean of its divisors is an integer number (492552900).

Almost surely, 2^33131285248 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 33131285248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35463808800).

33131285248 is an abundant number, since it is smaller than the sum of its proper divisors (37796332352).

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

33131285248 is a wasteful number, since it uses less digits than its factorization.

33131285248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1398 (or 1384 counting only the distinct ones).

The product of its digits is 138240, while the sum is 40.

The spelling of 33131285248 in words is "thirty-three billion, one hundred thirty-one million, two hundred eighty-five thousand, two hundred forty-eight".