8520804844 has 6 divisors (see below), whose sum is σ = 14911408484. Its totient is φ = 4260402420.

The previous prime is 8520804841. The next prime is 8520804857. The reversal of 8520804844 is 4484080258.

It is a self number, because there is not a number n which added to its sum of digits gives 8520804844.

It is not an unprimeable number, because it can be changed into a prime (8520804841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1065100602 + ... + 1065100609.

Almost surely, 2^8520804844 is an apocalyptic number.

It is an amenable number.

8520804844 is a deficient number, since it is larger than the sum of its proper divisors (6390603640).

8520804844 is a wasteful number, since it uses less digits than its factorization.

8520804844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2130201215 (or 2130201213 counting only the distinct ones).

The product of its (nonzero) digits is 327680, while the sum is 43.

The square root of 8520804844 is about 92308.2057240850. The cubic root of 8520804844 is about 2042.4912570170.

The spelling of 8520804844 in words is "eight billion, five hundred twenty million, eight hundred four thousand, eight hundred forty-four".