28868164672 has 56 divisors (see below), whose sum is σ = 60372345600. Its totient is φ = 13658052096.

The previous prime is 28868164621. The next prime is 28868164687. The reversal of 28868164672 is 27646186882.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1035654 + ... + 1063162.

It is an arithmetic number, because the mean of its divisors is an integer number (1078077600).

Almost surely, 2^28868164672 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 28868164672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30186172800).

28868164672 is an abundant number, since it is smaller than the sum of its proper divisors (31504180928).

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

28868164672 is a wasteful number, since it uses less digits than its factorization.

28868164672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28403 (or 28393 counting only the distinct ones).

The product of its digits is 12386304, while the sum is 58.

It can be divided in two parts, 288681 and 64672, that added together give a palindrome (353353).

The spelling of 28868164672 in words is "twenty-eight billion, eight hundred sixty-eight million, one hundred sixty-four thousand, six hundred seventy-two".