10881532728 has 48 divisors (see below), whose sum is σ = 32149985400. Its totient is φ = 3297433920.

The previous prime is 10881532721. The next prime is 10881532733. The reversal of 10881532728 is 82723518801.

10881532728 is a `hidden beast` number, since 10 + 8 + 81 + 532 + 7 + 28 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10881532721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6868863 + ... + 6870446.

Almost surely, 2^10881532728 is an apocalyptic number.

10881532728 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

10881532728 is an abundant number, since it is smaller than the sum of its proper divisors (21268452672).

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

10881532728 is a wasteful number, since it uses less digits than its factorization.

10881532728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13739332 (or 13739325 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 45.

The spelling of 10881532728 in words is "ten billion, eight hundred eighty-one million, five hundred thirty-two thousand, seven hundred twenty-eight".