28881784846 has 8 divisors (see below), whose sum is σ = 43347480840. Its totient is φ = 14432624568.

The previous prime is 28881784829. The next prime is 28881784847. The reversal of 28881784846 is 64848718882.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28881784847) 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 3 ways as a sum of consecutive naturals, for example, 4129561 + ... + 4136548.

It is an arithmetic number, because the mean of its divisors is an integer number (5418435105).

Almost surely, 2^28881784846 is an apocalyptic number.

28881784846 is a deficient number, since it is larger than the sum of its proper divisors (14465695994).

28881784846 is a wasteful number, since it uses less digits than its factorization.

28881784846 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8267858.

The product of its digits is 44040192, while the sum is 64.

The spelling of 28881784846 in words is "twenty-eight billion, eight hundred eighty-one million, seven hundred eighty-four thousand, eight hundred forty-six".