33481131672 has 32 divisors (see below), whose sum is σ = 85121524800. Its totient is φ = 10971217824.

The previous prime is 33481131623. The next prime is 33481131701. The reversal of 33481131672 is 27613118433.

It is a super-2 number, since 2×33481131672² (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 33481131672.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 11821018 + ... + 11823849.

It is an arithmetic number, because the mean of its divisors is an integer number (2660047650).

Almost surely, 2^33481131672 is an apocalyptic number.

It is an amenable number.

33481131672 is an abundant number, since it is smaller than the sum of its proper divisors (51640393128).

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

33481131672 is a wasteful number, since it uses less digits than its factorization.

33481131672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23644935 (or 23644931 counting only the distinct ones).

The product of its digits is 72576, while the sum is 39.

The spelling of 33481131672 in words is "thirty-three billion, four hundred eighty-one million, one hundred thirty-one thousand, six hundred seventy-two".