28194573348552 has 128 divisors (see below), whose sum is σ = 76489132003200. Its totient is φ = 8609032194048.

The previous prime is 28194573348521. The next prime is 28194573348553. The reversal of 28194573348552 is 25584337549182.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (28194573348553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 38184724 + ... + 38916092.

It is an arithmetic number, because the mean of its divisors is an integer number (597571343775).

Almost surely, 2^{28194573348552} 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 28194573348552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38244566001600).

28194573348552 is an abundant number, since it is smaller than the sum of its proper divisors (48294558654648).

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

28194573348552 is a wasteful number, since it uses less digits than its factorization.

28194573348552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 732335 (or 732331 counting only the distinct ones).

The product of its digits is 290304000, while the sum is 66.

The spelling of 28194573348552 in words is "twenty-eight trillion, one hundred ninety-four billion, five hundred seventy-three million, three hundred forty-eight thousand, five hundred fifty-two".