28228300560 has 60 divisors (see below), whose sum is σ = 94800045132. Its totient is φ = 7527546624.

The previous prime is 28228300553. The next prime is 28228300579. The reversal of 28228300560 is 6500382282.

28228300560 is a `hidden beast` number, since 282 + 28 + 300 + 56 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 13072720896 + 15155579664 = 114336^2 + 123108^2 .

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19602267 + ... + 19603706.

Almost surely, 2^28228300560 is an apocalyptic number.

28228300560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28228300560 is an abundant number, since it is smaller than the sum of its proper divisors (66571744572).

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

28228300560 is a wasteful number, since it uses less digits than its factorization.

28228300560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39205992 (or 39205983 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The spelling of 28228300560 in words is "twenty-eight billion, two hundred twenty-eight million, three hundred thousand, five hundred sixty".