28985635296 has 96 divisors (see below), whose sum is σ = 84575625120. Its totient is φ = 9657971712.

The previous prime is 28985635277. The next prime is 28985635297. The reversal of 28985635296 is 69253658982.

28985635296 is a `hidden beast` number, since 28 + 9 + 85 + 6 + 3 + 529 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28985635297) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2805436 + ... + 2815748.

It is an arithmetic number, because the mean of its divisors is an integer number (880996095).

Almost surely, 2^28985635296 is an apocalyptic number.

It is an amenable number.

28985635296 is an abundant number, since it is smaller than the sum of its proper divisors (55589989824).

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

28985635296 is a wasteful number, since it uses less digits than its factorization.

28985635296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13585 (or 13571 counting only the distinct ones).

The product of its digits is 55987200, while the sum is 63.

The spelling of 28985635296 in words is "twenty-eight billion, nine hundred eighty-five million, six hundred thirty-five thousand, two hundred ninety-six".