849475309922 has 18 divisors (see below), whose sum is σ = 1344845688129. Its totient is φ = 402371310600.

The previous prime is 849475309901. The next prime is 849475309993. The reversal of 849475309922 is 229903574948.

It can be written as a sum of positive squares in 2 ways, for example, as 663799638121 + 185675671801 = 814739^2 + 430901^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=651719.

It is a Duffinian 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 8 ways as a sum of consecutive naturals, for example, 24748172 + ... + 24782472.

Almost surely, 2^849475309922 is an apocalyptic number.

849475309922 is a deficient number, since it is larger than the sum of its proper divisors (495370378207).

849475309922 is an frugal number, since it uses more digits than its factorization.

849475309922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68642 (or 34322 counting only the distinct ones).

The product of its (nonzero) digits is 39191040, while the sum is 62.

The spelling of 849475309922 in words is "eight hundred forty-nine billion, four hundred seventy-five million, three hundred nine thousand, nine hundred twenty-two".