28871935488 has 400 divisors, whose sum is σ = 98986789440. Its totient is φ = 8286105600.

The previous prime is 28871935487. The next prime is 28871935531. The reversal of 28871935488 is 88453917882.

28871935488 is a `hidden beast` number, since 2 + 8 + 87 + 1 + 9 + 3 + 548 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28871935481) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 8665983 + ... + 8669313.

Almost surely, 2^28871935488 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28871935488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49493394720).

28871935488 is an abundant number, since it is smaller than the sum of its proper divisors (70114853952).

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

28871935488 is a wasteful number, since it uses less digits than its factorization.

28871935488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3391 (or 3366 counting only the distinct ones).

The product of its digits is 30965760, while the sum is 63.

The spelling of 28871935488 in words is "twenty-eight billion, eight hundred seventy-one million, nine hundred thirty-five thousand, four hundred eighty-eight".