8201475844 has 9 divisors (see below), whose sum is σ = 14352899701. Its totient is φ = 4100647360.

The previous prime is 8201475839. The next prime is 8201475853. The reversal of 8201475844 is 4485741028.

The square root of 8201475844 is 90562.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 7083242244 + 1118233600 = 84162^2 + 33440^2 .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8201475844.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 158484 + ... + 203764.

Almost surely, 2^8201475844 is an apocalyptic number.

8201475844 is the 90562-nd square number.

It is an amenable number.

8201475844 is a deficient number, since it is larger than the sum of its proper divisors (6151423857).

8201475844 is an frugal number, since it uses more digits than its factorization.

8201475844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90566 (or 45283 counting only the distinct ones).

The product of its (nonzero) digits is 286720, while the sum is 43.

The cubic root of 8201475844 is about 2016.6506469536.

The spelling of 8201475844 in words is "eight billion, two hundred one million, four hundred seventy-five thousand, eight hundred forty-four".