28094809952 has 288 divisors, whose sum is σ = 67267952640. Its totient is φ = 11496038400.

The previous prime is 28094809949. The next prime is 28094809961. The reversal of 28094809952 is 25990849082.

It is a congruent number.

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, 221218913 + ... + 221219039.

It is an arithmetic number, because the mean of its divisors is an integer number (233569280).

Almost surely, 2^28094809952 is an apocalyptic number.

28094809952 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28094809952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33633976320).

28094809952 is an abundant number, since it is smaller than the sum of its proper divisors (39173142688).

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

28094809952 is a wasteful number, since it uses less digits than its factorization.

28094809952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306 (or 287 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 56.

The spelling of 28094809952 in words is "twenty-eight billion, ninety-four million, eight hundred nine thousand, nine hundred fifty-two".