28859947116 has 768 divisors, whose sum is σ = 101964054528. Its totient is φ = 6104678400.

The previous prime is 28859947097. The next prime is 28859947117. The reversal of 28859947116 is 61174995882.

It is a self number, because there is not a number n which added to its sum of digits gives 28859947116.

It is not an unprimeable number, because it can be changed into a prime (28859947117) by changing a digit.

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 255 ways as a sum of consecutive naturals, for example, 297525180 + ... + 297525276.

It is an arithmetic number, because the mean of its divisors is an integer number (132765696).

Almost surely, 2^28859947116 is an apocalyptic number.

28859947116 is a gapful number since it is divisible by the number (26) 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 28859947116, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50982027264).

28859947116 is an abundant number, since it is smaller than the sum of its proper divisors (73104107412).

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

28859947116 is a wasteful number, since it uses less digits than its factorization.

28859947116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230 (or 228 counting only the distinct ones).

The product of its digits is 8709120, while the sum is 60.

The spelling of 28859947116 in words is "twenty-eight billion, eight hundred fifty-nine million, nine hundred forty-seven thousand, one hundred sixteen".