8422278636 has 12 divisors (see below), whose sum is σ = 19651983512. Its totient is φ = 2807426208.

The previous prime is 8422278619. The next prime is 8422278673. The reversal of 8422278636 is 6368722248.

It is a tau number, because it is divible by the number of its divisors (12).

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, 350928265 + ... + 350928288.

Almost surely, 2^8422278636 is an apocalyptic number.

It is an amenable number.

8422278636 is an abundant number, since it is smaller than the sum of its proper divisors (11229704876).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8422278636 is a wasteful number, since it uses less digits than its factorization.

8422278636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 701856560 (or 701856558 counting only the distinct ones).

The product of its digits is 1548288, while the sum is 48.

The square root of 8422278636 is about 91772.9733418287. The cubic root of 8422278636 is about 2034.5882640290.

The spelling of 8422278636 in words is "eight billion, four hundred twenty-two million, two hundred seventy-eight thousand, six hundred thirty-six".