28868463432 has 96 divisors (see below), whose sum is σ = 82377360000. Its totient is φ = 9115020288.

The previous prime is 28868463401. The next prime is 28868463443. The reversal of 28868463432 is 23436486882.

28868463432 is a `hidden beast` number, since 2 + 88 + 68 + 463 + 43 + 2 = 666.

It is a super-3 number, since 3×28868463432³ (a number of 32 digits) contains 333 as substring.

It is a nude number because it is divisible by every one of its digits.

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 23 ways as a sum of consecutive naturals, for example, 85944 + ... + 255192.

It is an arithmetic number, because the mean of its divisors is an integer number (858097500).

Almost surely, 2^28868463432 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 28868463432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41188680000).

28868463432 is an abundant number, since it is smaller than the sum of its proper divisors (53508896568).

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

28868463432 is a wasteful number, since it uses less digits than its factorization.

28868463432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169387 (or 169380 counting only the distinct ones).

The product of its digits is 10616832, while the sum is 54.

The spelling of 28868463432 in words is "twenty-eight billion, eight hundred sixty-eight million, four hundred sixty-three thousand, four hundred thirty-two".