28849228560 has 240 divisors, whose sum is σ = 100299104256. Its totient is φ = 7425395712.

The previous prime is 28849228517. The next prime is 28849228591. The reversal of 28849228560 is 6582294882.

It is a happy number.

28849228560 is a `hidden beast` number, since 2 + 88 + 492 + 28 + 56 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (240).

It is a junction number, because it is equal to n+sod(n) for n = 28849228497 and 28849228506.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3379017 + ... + 3387543.

Almost surely, 2^28849228560 is an apocalyptic number.

28849228560 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 28849228560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50149552128).

28849228560 is an abundant number, since it is smaller than the sum of its proper divisors (71449875696).

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

28849228560 is a wasteful number, since it uses less digits than its factorization.

28849228560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8710 (or 8701 counting only the distinct ones).

The product of its (nonzero) digits is 4423680, while the sum is 54.

The spelling of 28849228560 in words is "twenty-eight billion, eight hundred forty-nine million, two hundred twenty-eight thousand, five hundred sixty".