28252394352 has 200 divisors, whose sum is σ = 100641190496. Its totient is φ = 7451149824.

The previous prime is 28252394351. The next prime is 28252394381. The reversal of 28252394352 is 25349325282.

28252394352 is a `hidden beast` number, since 2 + 8 + 2 + 523 + 94 + 35 + 2 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 28252394298 and 28252394307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28252394351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1843 + ... + 237714.

Almost surely, 2^28252394352 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 28252394352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50320595248).

28252394352 is an abundant number, since it is smaller than the sum of its proper divisors (72388796144).

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

28252394352 is a wasteful number, since it uses less digits than its factorization.

28252394352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239597 (or 239582 counting only the distinct ones).

The product of its digits is 1036800, while the sum is 45.

The spelling of 28252394352 in words is "twenty-eight billion, two hundred fifty-two million, three hundred ninety-four thousand, three hundred fifty-two".