17728135224 has 64 divisors (see below), whose sum is σ = 46451370240. Its totient is φ = 5627508480.

The previous prime is 17728135189. The next prime is 17728135273. The reversal of 17728135224 is 42253182771.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 54564 + ... + 196044.

It is an arithmetic number, because the mean of its divisors is an integer number (725802660).

Almost surely, 2^17728135224 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 17728135224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23225685120).

17728135224 is an abundant number, since it is smaller than the sum of its proper divisors (28723235016).

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

17728135224 is a wasteful number, since it uses less digits than its factorization.

17728135224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141740 (or 141736 counting only the distinct ones).

The product of its digits is 188160, while the sum is 42.

The spelling of 17728135224 in words is "seventeen billion, seven hundred twenty-eight million, one hundred thirty-five thousand, two hundred twenty-four".