8491869222 has 16 divisors (see below), whose sum is σ = 17027403120. Its totient is φ = 2823345632.

The previous prime is 8491869193. The next prime is 8491869247. The reversal of 8491869222 is 2229681948.

It is a super-2 number, since 2×8491869222² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1816833 + ... + 1821500.

It is an arithmetic number, because the mean of its divisors is an integer number (1064212695).

Almost surely, 2^8491869222 is an apocalyptic number.

8491869222 is an abundant number, since it is smaller than the sum of its proper divisors (8535533898).

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

8491869222 is a wasteful number, since it uses less digits than its factorization.

8491869222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3638727.

The product of its digits is 995328, while the sum is 51.

The square root of 8491869222 is about 92151.3386880516. The cubic root of 8491869222 is about 2040.1766172537.

The spelling of 8491869222 in words is "eight billion, four hundred ninety-one million, eight hundred sixty-nine thousand, two hundred twenty-two".