15728859768 has 16 divisors (see below), whose sum is σ = 39322149480. Its totient is φ = 5242953248.

The previous prime is 15728859743. The next prime is 15728859779. The reversal of 15728859768 is 86795882751.

15728859768 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 15728859699 and 15728859708.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 327684555 + ... + 327684602.

Almost surely, 2^15728859768 is an apocalyptic number.

It is an amenable number.

15728859768 is an abundant number, since it is smaller than the sum of its proper divisors (23593289712).

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

15728859768 is a wasteful number, since it uses less digits than its factorization.

15728859768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 655369166 (or 655369162 counting only the distinct ones).

The product of its digits is 67737600, while the sum is 66.

The spelling of 15728859768 in words is "fifteen billion, seven hundred twenty-eight million, eight hundred fifty-nine thousand, seven hundred sixty-eight".