28596563136 has 448 divisors, whose sum is σ = 93020083200. Its totient is φ = 8583708672.

The previous prime is 28596563131. The next prime is 28596563161. The reversal of 28596563136 is 63136569582.

It is a happy number.

28596563136 is a `hidden beast` number, since 28 + 59 + 6 + 563 + 1 + 3 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (28596563131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 49560480 + ... + 49561056.

Almost surely, 2^28596563136 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 28596563136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46510041600).

28596563136 is an abundant number, since it is smaller than the sum of its proper divisors (64423520064).

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

28596563136 is a wasteful number, since it uses less digits than its factorization.

28596563136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 693 (or 677 counting only the distinct ones).

The product of its digits is 6998400, while the sum is 54.

The spelling of 28596563136 in words is "twenty-eight billion, five hundred ninety-six million, five hundred sixty-three thousand, one hundred thirty-six".