28984908120 has 256 divisors, whose sum is σ = 104799744000. Its totient is φ = 6264884736.

The previous prime is 28984908107. The next prime is 28984908167. The reversal of 28984908120 is 2180948982.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 10899351 + ... + 10902009.

It is an arithmetic number, because the mean of its divisors is an integer number (409374000).

Almost surely, 2^28984908120 is an apocalyptic number.

28984908120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28984908120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52399872000).

28984908120 is an abundant number, since it is smaller than the sum of its proper divisors (75814835880).

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

28984908120 is a wasteful number, since it uses less digits than its factorization.

28984908120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3382 (or 3378 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 51.

The spelling of 28984908120 in words is "twenty-eight billion, nine hundred eighty-four million, nine hundred eight thousand, one hundred twenty".