822406529280 has 864 divisors, whose sum is σ = 3171552814080. Its totient is φ = 180901969920.

The previous prime is 822406529261. The next prime is 822406529323. The reversal of 822406529280 is 82925604228.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1615729666 + ... + 1615730174.

It is an arithmetic number, because the mean of its divisors is an integer number (3670778720).

Almost surely, 2^822406529280 is an apocalyptic number.

822406529280 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 822406529280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1585776407040).

822406529280 is an abundant number, since it is smaller than the sum of its proper divisors (2349146284800).

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

822406529280 is a wasteful number, since it uses less digits than its factorization.

822406529280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 855 (or 834 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 48.

The spelling of 822406529280 in words is "eight hundred twenty-two billion, four hundred six million, five hundred twenty-nine thousand, two hundred eighty".