850404225280 has 288 divisors, whose sum is σ = 2177895081600. Its totient is φ = 317233299456.

The previous prime is 850404225257. The next prime is 850404225289. The reversal of 850404225280 is 82522404058.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (850404225289) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 450186576 + ... + 450188464.

It is an arithmetic number, because the mean of its divisors is an integer number (7562135700).

Almost surely, 2^850404225280 is an apocalyptic number.

850404225280 is a gapful number since it is divisible by the number (80) 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 850404225280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1088947540800).

850404225280 is an abundant number, since it is smaller than the sum of its proper divisors (1327490856320).

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

850404225280 is a wasteful number, since it uses less digits than its factorization.

850404225280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2209 (or 2195 counting only the distinct ones).

The product of its (nonzero) digits is 204800, while the sum is 40.

The spelling of 850404225280 in words is "eight hundred fifty billion, four hundred four million, two hundred twenty-five thousand, two hundred eighty".