6821201200800 has 288 divisors, whose sum is σ = 25394159919744. Its totient is φ = 1557946368000.

The previous prime is 6821201200783. The next prime is 6821201200841. The reversal of 6821201200800 is 80021021286.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 22039120 + ... + 22346480.

It is an arithmetic number, because the mean of its divisors is an integer number (88174166388).

Almost surely, 2^{6821201200800} is an apocalyptic number.

6821201200800 is a gapful number since it is divisible by the number (60) 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 6821201200800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12697079959872).

6821201200800 is an abundant number, since it is smaller than the sum of its proper divisors (18572958718944).

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

6821201200800 is a wasteful number, since it uses less digits than its factorization.

6821201200800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308712 (or 308699 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 30.

The spelling of 6821201200800 in words is "six trillion, eight hundred twenty-one billion, two hundred one million, two hundred thousand, eight hundred".