32181408912 has 40 divisors (see below), whose sum is σ = 84376140256. Its totient is φ = 10567028736.

The previous prime is 32181408881. The next prime is 32181408929. The reversal of 32181408912 is 21980418123.

It is a super-2 number, since 2×32181408912² (a number of 22 digits) contains 22 as substring.

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, 5000113 + ... + 5006544.

Almost surely, 2^32181408912 is an apocalyptic number.

It is an amenable number.

32181408912 is an abundant number, since it is smaller than the sum of its proper divisors (52194731344).

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

32181408912 is a wasteful number, since it uses less digits than its factorization.

32181408912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10006735 (or 10006729 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 39.

The spelling of 32181408912 in words is "thirty-two billion, one hundred eighty-one million, four hundred eight thousand, nine hundred twelve".