28560852875520 has 1440 divisors, whose sum is σ = 119451556224000. Its totient is φ = 6513279123456.

The previous prime is 28560852875519. The next prime is 28560852875531. The reversal of 28560852875520 is 2557825806582.

28560852875520 is a `hidden beast` number, since 2 + 8 + 5 + 6 + 0 + 85 + 28 + 7 + 5 + 520 = 666.

It is a tau number, because it is divible by the number of its divisors (1440).

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 25569250002 + ... + 25569251118.

It is an arithmetic number, because the mean of its divisors is an integer number (82952469600).

Almost surely, 2^{28560852875520} is an apocalyptic number.

28560852875520 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 28560852875520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59725778112000).

28560852875520 is an abundant number, since it is smaller than the sum of its proper divisors (90890703348480).

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

28560852875520 is an equidigital number, since it uses as much as digits as its factorization.

28560852875520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1890 (or 1853 counting only the distinct ones).

The product of its (nonzero) digits is 107520000, while the sum is 63.

The spelling of 28560852875520 in words is "twenty-eight trillion, five hundred sixty billion, eight hundred fifty-two million, eight hundred seventy-five thousand, five hundred twenty".