28578210560 has 288 divisors, whose sum is σ = 73240215552. Its totient is φ = 10667704320.

The previous prime is 28578210559. The next prime is 28578210571. The reversal of 28578210560 is 6501287582.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 225025217 + ... + 225025343.

It is an arithmetic number, because the mean of its divisors is an integer number (254306304).

Almost surely, 2^28578210560 is an apocalyptic number.

28578210560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28578210560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36620107776).

28578210560 is an abundant number, since it is smaller than the sum of its proper divisors (44662004992).

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

28578210560 is a wasteful number, since it uses less digits than its factorization.

28578210560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 339 (or 325 counting only the distinct ones).

The product of its (nonzero) digits is 268800, while the sum is 44.

The spelling of 28578210560 in words is "twenty-eight billion, five hundred seventy-eight million, two hundred ten thousand, five hundred sixty".