28009160256 has 224 divisors, whose sum is σ = 93776182272. Its totient is φ = 7166269440.

The previous prime is 28009160243. The next prime is 28009160279. The reversal of 28009160256 is 65206190082.

It is a tau number, because it is divible by the number of its divisors (224).

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, 976390 + ... + 1004666.

Almost surely, 2^28009160256 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 28009160256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46888091136).

28009160256 is an abundant number, since it is smaller than the sum of its proper divisors (65767022016).

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

28009160256 is a wasteful number, since it uses less digits than its factorization.

28009160256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28377 (or 28367 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 39.

The spelling of 28009160256 in words is "twenty-eight billion, nine million, one hundred sixty thousand, two hundred fifty-six".