28517133696 has 64 divisors (see below), whose sum is σ = 75864254400. Its totient is φ = 9491202560.

The previous prime is 28517133683. The next prime is 28517133713. The reversal of 28517133696 is 69633171582.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 196711 + ... + 309401.

It is an arithmetic number, because the mean of its divisors is an integer number (1185378975).

Almost surely, 2^28517133696 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 28517133696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37932127200).

28517133696 is an abundant number, since it is smaller than the sum of its proper divisors (47347120704).

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

28517133696 is a wasteful number, since it uses less digits than its factorization.

28517133696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113367 (or 113355 counting only the distinct ones).

The product of its digits is 1632960, while the sum is 51.

The spelling of 28517133696 in words is "twenty-eight billion, five hundred seventeen million, one hundred thirty-three thousand, six hundred ninety-six".