28884946805 has 48 divisors (see below), whose sum is σ = 41094889920. Its totient is φ = 19320537600.

The previous prime is 28884946757. The next prime is 28884946813. The reversal of 28884946805 is 50864948882.

It is a de Polignac number, because none of the positive numbers 2^k-28884946805 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2606366 + ... + 2617424.

It is an arithmetic number, because the mean of its divisors is an integer number (856143540).

Almost surely, 2^28884946805 is an apocalyptic number.

It is an amenable number.

28884946805 is a deficient number, since it is larger than the sum of its proper divisors (12209943115).

28884946805 is a wasteful number, since it uses less digits than its factorization.

28884946805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11382 (or 11369 counting only the distinct ones).

The product of its (nonzero) digits is 35389440, while the sum is 62.

The spelling of 28884946805 in words is "twenty-eight billion, eight hundred eighty-four million, nine hundred forty-six thousand, eight hundred five".