8642198764 has 12 divisors (see below), whose sum is σ = 15220179184. Its totient is φ = 4293576144.

The previous prime is 8642198749. The next prime is 8642198797. The reversal of 8642198764 is 4678912468.

It is a happy number.

8642198764 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6880104 + ... + 6881359.

Almost surely, 2^8642198764 is an apocalyptic number.

It is an amenable number.

8642198764 is a deficient number, since it is larger than the sum of its proper divisors (6577980420).

8642198764 is a wasteful number, since it uses less digits than its factorization.

8642198764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13761624 (or 13761622 counting only the distinct ones).

The product of its digits is 4644864, while the sum is 55.

The square root of 8642198764 is about 92963.4270237495. The cubic root of 8642198764 is about 2052.1451876164.

The spelling of 8642198764 in words is "eight billion, six hundred forty-two million, one hundred ninety-eight thousand, seven hundred sixty-four".