28320247800000 has 2016 divisors, whose sum is σ = 113041894230720. Its totient is φ = 6735052800000.

The previous prime is 28320247799999. The next prime is 28320247800037. The reversal of 28320247800000 is 874202382.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

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 287 ways as a sum of consecutive naturals, for example, 100783799860 + ... + 100783800140.

It is an arithmetic number, because the mean of its divisors is an integer number (56072368170).

Almost surely, 2^{28320247800000} is an apocalyptic number.

28320247800000 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 28320247800000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56520947115360).

28320247800000 is an abundant number, since it is smaller than the sum of its proper divisors (84721646430720).

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

28320247800000 is a wasteful number, since it uses less digits than its factorization.

28320247800000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469 (or 436 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 36.

The spelling of 28320247800000 in words is "twenty-eight trillion, three hundred twenty billion, two hundred forty-seven million, eight hundred thousand".