28325368500 has 768 divisors, whose sum is σ = 103064113152. Its totient is φ = 5951232000.

The previous prime is 28325368451. The next prime is 28325368501. The reversal of 28325368500 is 586352382.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28325368501) by changing a digit.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 341269459 + ... + 341269541.

It is an arithmetic number, because the mean of its divisors is an integer number (134198064).

Almost surely, 2^28325368500 is an apocalyptic number.

28325368500 is a gapful number since it is divisible by the number (20) 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 28325368500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51532056576).

28325368500 is an abundant number, since it is smaller than the sum of its proper divisors (74738744652).

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

28325368500 is a wasteful number, since it uses less digits than its factorization.

28325368500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209 (or 197 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 42.

The spelling of 28325368500 in words is "twenty-eight billion, three hundred twenty-five million, three hundred sixty-eight thousand, five hundred".