8549437868 has 24 divisors (see below), whose sum is σ = 15056574960. Its totient is φ = 4247588160.

The previous prime is 8549437867. The next prime is 8549437901. The reversal of 8549437868 is 8687349458.

It is a self number, because there is not a number n which added to its sum of digits gives 8549437868.

It is not an unprimeable number, because it can be changed into a prime (8549437861) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2303198 + ... + 2306906.

It is an arithmetic number, because the mean of its divisors is an integer number (627357290).

Almost surely, 2^8549437868 is an apocalyptic number.

It is an amenable number.

8549437868 is a deficient number, since it is larger than the sum of its proper divisors (6507137092).

8549437868 is a wasteful number, since it uses less digits than its factorization.

8549437868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7217 (or 7215 counting only the distinct ones).

The product of its digits is 46448640, while the sum is 62.

The square root of 8549437868 is about 92463.1703328412. The cubic root of 8549437868 is about 2044.7765386115.

The spelling of 8549437868 in words is "eight billion, five hundred forty-nine million, four hundred thirty-seven thousand, eight hundred sixty-eight".