8138228318 has 64 divisors (see below), whose sum is σ = 13853721600. Its totient is φ = 3553776000.

The previous prime is 8138228297. The next prime is 8138228323.

8138228318 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15560405 + ... + 15560927.

It is an arithmetic number, because the mean of its divisors is an integer number (216464400).

Almost surely, 2^8138228318 is an apocalyptic number.

8138228318 is a deficient number, since it is larger than the sum of its proper divisors (5715493282).

8138228318 is a wasteful number, since it uses less digits than its factorization.

8138228318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 833.

The product of its digits is 147456, while the sum is 44.

The square root of 8138228318 is about 90212.1295502994. The cubic root of 8138228318 is about 2011.4533121185.

The spelling of 8138228318 in words is "eight billion, one hundred thirty-eight million, two hundred twenty-eight thousand, three hundred eighteen".