32881068864 has 84 divisors (see below), whose sum is σ = 107711609824. Its totient is φ = 9394589952.

The previous prime is 32881068841. The next prime is 32881068881. The reversal of 32881068864 is 46886018823.

It is a tau number, because it is divible by the number of its divisors (84).

It is a super-2 number, since 2×32881068864² (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 32881068864.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 4073482 + ... + 4081545.

Almost surely, 2^32881068864 is an apocalyptic number.

It is an amenable number.

32881068864 is an abundant number, since it is smaller than the sum of its proper divisors (74830540960).

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

32881068864 is a wasteful number, since it uses less digits than its factorization.

32881068864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8155052 (or 8155039 counting only the distinct ones).

The product of its (nonzero) digits is 3538944, while the sum is 54.

The spelling of 32881068864 in words is "thirty-two billion, eight hundred eighty-one million, sixty-eight thousand, eight hundred sixty-four".