28849340884 has 96 divisors (see below), whose sum is σ = 65868042240. Its totient is φ = 10729193472.

The previous prime is 28849340873. The next prime is 28849340899. The reversal of 28849340884 is 48804394882.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 6724212 + ... + 6728500.

It is an arithmetic number, because the mean of its divisors is an integer number (686125440).

Almost surely, 2^28849340884 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 28849340884, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32934021120).

28849340884 is an abundant number, since it is smaller than the sum of its proper divisors (37018701356).

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

28849340884 is a wasteful number, since it uses less digits than its factorization.

28849340884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5417 (or 5415 counting only the distinct ones).

The product of its (nonzero) digits is 14155776, while the sum is 58.

The spelling of 28849340884 in words is "twenty-eight billion, eight hundred forty-nine million, three hundred forty thousand, eight hundred eighty-four".