28160225280 has 1248 divisors, whose sum is σ = 121441731840. Its totient is φ = 5945425920.

The previous prime is 28160225273. The next prime is 28160225281. The reversal of 28160225280 is 8252206182.

28160225280 is a `hidden beast` number, since 2 + 8 + 1 + 602 + 25 + 28 + 0 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28160225281) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 654888939 + ... + 654888981.

It is an arithmetic number, because the mean of its divisors is an integer number (97309080).

Almost surely, 2^28160225280 is an apocalyptic number.

28160225280 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 28160225280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60720865920).

28160225280 is an abundant number, since it is smaller than the sum of its proper divisors (93281506560).

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

28160225280 is a wasteful number, since it uses less digits than its factorization.

28160225280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125 (or 100 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 36.

The spelling of 28160225280 in words is "twenty-eight billion, one hundred sixty million, two hundred twenty-five thousand, two hundred eighty".