816009448422 has 16 divisors (see below), whose sum is σ = 1865164453632. Its totient is φ = 233145556680.

The previous prime is 816009448417. The next prime is 816009448427. The reversal of 816009448422 is 224844900618.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (816009448417) and next prime (816009448427).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (816009448427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9714398154 + ... + 9714398237.

It is an arithmetic number, because the mean of its divisors is an integer number (116572778352).

Almost surely, 2^816009448422 is an apocalyptic number.

816009448422 is an abundant number, since it is smaller than the sum of its proper divisors (1049155005210).

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

816009448422 is a wasteful number, since it uses less digits than its factorization.

816009448422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19428796403.

The product of its (nonzero) digits is 884736, while the sum is 48.

The spelling of 816009448422 in words is "eight hundred sixteen billion, nine million, four hundred forty-eight thousand, four hundred twenty-two".