111728892832 has 96 divisors (see below), whose sum is σ = 228042864000. Its totient is φ = 53860466688.

The previous prime is 111728892811. The next prime is 111728892841. The reversal of 111728892832 is 238298827111.

It is a self number, because there is not a number n which added to its sum of digits gives 111728892832.

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 15 ways as a sum of consecutive naturals, for example, 20691669 + ... + 20697067.

It is an arithmetic number, because the mean of its divisors is an integer number (2375446500).

Almost surely, 2^111728892832 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111728892832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114021432000).

111728892832 is an abundant number, since it is smaller than the sum of its proper divisors (116313971168).

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

111728892832 is a wasteful number, since it uses less digits than its factorization.

111728892832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5678 (or 5670 counting only the distinct ones).

The product of its digits is 774144, while the sum is 52.

The spelling of 111728892832 in words is "one hundred eleven billion, seven hundred twenty-eight million, eight hundred ninety-two thousand, eight hundred thirty-two".