28306616832 has 320 divisors, whose sum is σ = 93164037120. Its totient is φ = 8427110400.

The previous prime is 28306616827. The next prime is 28306616837. The reversal of 28306616832 is 23861660382.

It is a happy number.

28306616832 is a `hidden beast` number, since 28 + 3 + 0 + 6 + 616 + 8 + 3 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (28306616827) and next prime (28306616837).

It is not an unprimeable number, because it can be changed into a prime (28306616837) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5568532 + ... + 5573612.

It is an arithmetic number, because the mean of its divisors is an integer number (291137616).

Almost surely, 2^28306616832 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 28306616832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46582018560).

28306616832 is an abundant number, since it is smaller than the sum of its proper divisors (64857420288).

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

28306616832 is a wasteful number, since it uses less digits than its factorization.

28306616832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5152 (or 5130 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 45.

The spelling of 28306616832 in words is "twenty-eight billion, three hundred six million, six hundred sixteen thousand, eight hundred thirty-two".