8518814428 has 48 divisors (see below), whose sum is σ = 15818310144. Its totient is φ = 4005777600.

The previous prime is 8518814419. The next prime is 8518814429. The reversal of 8518814428 is 8244188158.

It is a happy number.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8518814429) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4480278 + ... + 4482178.

It is an arithmetic number, because the mean of its divisors is an integer number (329548128).

Almost surely, 2^8518814428 is an apocalyptic number.

It is an amenable number.

8518814428 is a deficient number, since it is larger than the sum of its proper divisors (7299495716).

8518814428 is a wasteful number, since it uses less digits than its factorization.

8518814428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2722 (or 2720 counting only the distinct ones).

The product of its digits is 655360, while the sum is 49.

The square root of 8518814428 is about 92297.4237343600. The cubic root of 8518814428 is about 2042.3322061626.

The spelling of 8518814428 in words is "eight billion, five hundred eighteen million, eight hundred fourteen thousand, four hundred twenty-eight".