28193346832 has 80 divisors (see below), whose sum is σ = 64110182400. Its totient is φ = 11761626240.

The previous prime is 28193346823. The next prime is 28193346833. The reversal of 28193346832 is 23864339182.

It is not an unprimeable number, because it can be changed into a prime (28193346833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 605769 + ... + 650647.

It is an arithmetic number, because the mean of its divisors is an integer number (801377280).

Almost surely, 2^28193346832 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 28193346832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32055091200).

28193346832 is an abundant number, since it is smaller than the sum of its proper divisors (35916835568).

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

28193346832 is a wasteful number, since it uses less digits than its factorization.

28193346832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45044 (or 45038 counting only the distinct ones).

The product of its digits is 1492992, while the sum is 49.

The spelling of 28193346832 in words is "twenty-eight billion, one hundred ninety-three million, three hundred forty-six thousand, eight hundred thirty-two".