28143546336 has 192 divisors, whose sum is σ = 83602713600. Its totient is φ = 9209023488.

The previous prime is 28143546313. The next prime is 28143546337. The reversal of 28143546336 is 63364534182.

28143546336 is a `hidden beast` number, since 2 + 8 + 1 + 4 + 3 + 5 + 4 + 633 + 6 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 28143546291 and 28143546300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28143546337) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15073275 + ... + 15075141.

It is an arithmetic number, because the mean of its divisors is an integer number (435430800).

Almost surely, 2^28143546336 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 28143546336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41801356800).

28143546336 is an abundant number, since it is smaller than the sum of its proper divisors (55459167264).

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

28143546336 is a wasteful number, since it uses less digits than its factorization.

28143546336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2198 (or 2184 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 45.

The spelling of 28143546336 in words is "twenty-eight billion, one hundred forty-three million, five hundred forty-six thousand, three hundred thirty-six".