28728096936 has 128 divisors (see below), whose sum is σ = 89800704000. Its totient is φ = 7440295680.

The previous prime is 28728096907. The next prime is 28728097001. The reversal of 28728096936 is 63969082782.

It is a self number, because there is not a number n which added to its sum of digits gives 28728096936.

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 31 ways as a sum of consecutive naturals, for example, 622681 + ... + 667223.

It is an arithmetic number, because the mean of its divisors is an integer number (701568000).

Almost surely, 2^28728096936 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 28728096936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44900352000).

28728096936 is an abundant number, since it is smaller than the sum of its proper divisors (61072607064).

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

28728096936 is a wasteful number, since it uses less digits than its factorization.

28728096936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44919 (or 44915 counting only the distinct ones).

The product of its (nonzero) digits is 15676416, while the sum is 60.

The spelling of 28728096936 in words is "twenty-eight billion, seven hundred twenty-eight million, ninety-six thousand, nine hundred thirty-six".