822022389792 has 384 divisors, whose sum is σ = 2592421977600. Its totient is φ = 252631830528.

The previous prime is 822022389751. The next prime is 822022389817. The reversal of 822022389792 is 297983220228.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 643713058 + ... + 643714334.

It is an arithmetic number, because the mean of its divisors is an integer number (6751098900).

Almost surely, 2^822022389792 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 822022389792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1296210988800).

822022389792 is an abundant number, since it is smaller than the sum of its proper divisors (1770399587808).

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

822022389792 is a wasteful number, since it uses less digits than its factorization.

822022389792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2465 (or 2451 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 54.

The spelling of 822022389792 in words is "eight hundred twenty-two billion, twenty-two million, three hundred eighty-nine thousand, seven hundred ninety-two".