822391806722 has 8 divisors (see below), whose sum is σ = 1262275796496. Its totient is φ = 401633207892.

The previous prime is 822391806721. The next prime is 822391806739. The reversal of 822391806722 is 227608193228.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (822391806721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4781347628 + ... + 4781347799.

It is an arithmetic number, because the mean of its divisors is an integer number (157784474562).

Almost surely, 2^822391806722 is an apocalyptic number.

822391806722 is a deficient number, since it is larger than the sum of its proper divisors (439883989774).

822391806722 is a wasteful number, since it uses less digits than its factorization.

822391806722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9562695472.

The product of its (nonzero) digits is 1161216, while the sum is 50.

The spelling of 822391806722 in words is "eight hundred twenty-two billion, three hundred ninety-one million, eight hundred six thousand, seven hundred twenty-two".