28229306112 has 486 divisors, whose sum is σ = 98603749608. Its totient is φ = 8065516032.

The previous prime is 28229306071. The next prime is 28229306129. The reversal of 28229306112 is 21160392282.

It is a happy number.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

28229306112 is a `hidden beast` number, since 2 + 8 + 2 + 2 + 9 + 30 + 611 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (486).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 4032758013 + ... + 4032758019.

Almost surely, 2^28229306112 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 28229306112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49301874804).

28229306112 is an abundant number, since it is smaller than the sum of its proper divisors (70374443496).

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

28229306112 is an frugal number, since it uses more digits than its factorization.

28229306112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75 (or 12 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

Multiplying 28229306112 by its sum of digits (36), we get a 5-th power (1016255020032 = 252⁵).

Adding to 28229306112 its reverse (21160392282), we get a palindrome (49389698394).

The spelling of 28229306112 in words is "twenty-eight billion, two hundred twenty-nine million, three hundred six thousand, one hundred twelve".