28985097824 has 24 divisors (see below), whose sum is σ = 57077395200. Its totient is φ = 14489251456.

The previous prime is 28985097811. The next prime is 28985097829. The reversal of 28985097824 is 42879058982.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28985097829) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42977 + ... + 244575.

It is an arithmetic number, because the mean of its divisors is an integer number (2378224800).

Almost surely, 2^28985097824 is an apocalyptic number.

It is an amenable number.

28985097824 is a deficient number, since it is larger than the sum of its proper divisors (28092297376).

28985097824 is a wasteful number, since it uses less digits than its factorization.

28985097824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206102 (or 206094 counting only the distinct ones).

The product of its (nonzero) digits is 23224320, while the sum is 62.

The spelling of 28985097824 in words is "twenty-eight billion, nine hundred eighty-five million, ninety-seven thousand, eight hundred twenty-four".