8464545844 has 6 divisors (see below), whose sum is σ = 14812955234. Its totient is φ = 4232272920.

The previous prime is 8464545811. The next prime is 8464545853. The reversal of 8464545844 is 4485454648.

It can be written as a sum of positive squares in only one way, i.e., 5356483344 + 3108062500 = 73188^2 + 55750^2 .

It is a junction number, because it is equal to n+sod(n) for n = 8464545791 and 8464545800.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1058068227 + ... + 1058068234.

Almost surely, 2^8464545844 is an apocalyptic number.

It is an amenable number.

8464545844 is a deficient number, since it is larger than the sum of its proper divisors (6348409390).

8464545844 is a wasteful number, since it uses less digits than its factorization.

8464545844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2116136465 (or 2116136463 counting only the distinct ones).

The product of its digits is 9830400, while the sum is 52.

The square root of 8464545844 is about 92002.9664956516. The cubic root of 8464545844 is about 2037.9861135980.

The spelling of 8464545844 in words is "eight billion, four hundred sixty-four million, five hundred forty-five thousand, eight hundred forty-four".