33144039972 has 24 divisors (see below), whose sum is σ = 85928992800. Its totient is φ = 11048013288.

The previous prime is 33144039893. The next prime is 33144039977. The reversal of 33144039972 is 27993044133.

It is not an unprimeable number, because it can be changed into a prime (33144039977) 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 7 ways as a sum of consecutive naturals, for example, 153444522 + ... + 153444737.

It is an arithmetic number, because the mean of its divisors is an integer number (3580374700).

Almost surely, 2^33144039972 is an apocalyptic number.

It is an amenable number.

33144039972 is an abundant number, since it is smaller than the sum of its proper divisors (52784952828).

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

33144039972 is a wasteful number, since it uses less digits than its factorization.

33144039972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306889272 (or 306889264 counting only the distinct ones).

The product of its (nonzero) digits is 489888, while the sum is 45.

The spelling of 33144039972 in words is "thirty-three billion, one hundred forty-four million, thirty-nine thousand, nine hundred seventy-two".