28838946472 has 192 divisors, whose sum is σ = 70473888000. Its totient is φ = 10962653184.

The previous prime is 28838946457. The next prime is 28838946503. The reversal of 28838946472 is 27464983882.

It is a super-2 number, since 2×28838946472² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 28838946472.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 30260748 + ... + 30261700.

It is an arithmetic number, because the mean of its divisors is an integer number (367051500).

Almost surely, 2^28838946472 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 28838946472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35236944000).

28838946472 is an abundant number, since it is smaller than the sum of its proper divisors (41634941528).

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

28838946472 is a wasteful number, since it uses less digits than its factorization.

28838946472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1248 (or 1237 counting only the distinct ones).

The product of its digits is 37158912, while the sum is 61.

The spelling of 28838946472 in words is "twenty-eight billion, eight hundred thirty-eight million, nine hundred forty-six thousand, four hundred seventy-two".