28569983148 has 192 divisors, whose sum is σ = 89849088000. Its totient is φ = 7664025600.

The previous prime is 28569983111. The next prime is 28569983149. The reversal of 28569983148 is 84138996582.

28569983148 is a `hidden beast` number, since 28 + 569 + 9 + 8 + 3 + 1 + 48 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (28569983149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5768073 + ... + 5773023.

It is an arithmetic number, because the mean of its divisors is an integer number (467964000).

Almost surely, 2^28569983148 is an apocalyptic number.

28569983148 is a gapful number since it is divisible by the number (28) 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 28569983148, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44924544000).

28569983148 is an abundant number, since it is smaller than the sum of its proper divisors (61279104852).

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

28569983148 is a wasteful number, since it uses less digits than its factorization.

28569983148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5437 (or 5429 counting only the distinct ones).

The product of its digits is 29859840, while the sum is 63.

The spelling of 28569983148 in words is "twenty-eight billion, five hundred sixty-nine million, nine hundred eighty-three thousand, one hundred forty-eight".