8571226642 has 32 divisors (see below), whose sum is σ = 14682083328. Its totient is φ = 3717210000.

The previous prime is 8571226633. The next prime is 8571226649. The reversal of 8571226642 is 2466221758.

It is a happy number.

It is a super-2 number, since 2×8571226642² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8571226649) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 40084 + ... + 136927.

It is an arithmetic number, because the mean of its divisors is an integer number (458815104).

Almost surely, 2^8571226642 is an apocalyptic number.

8571226642 is a deficient number, since it is larger than the sum of its proper divisors (6110856686).

8571226642 is a wasteful number, since it uses less digits than its factorization.

8571226642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177126.

The product of its digits is 322560, while the sum is 43.

The square root of 8571226642 is about 92580.9194272772. The cubic root of 8571226642 is about 2046.5121450619.

The spelling of 8571226642 in words is "eight billion, five hundred seventy-one million, two hundred twenty-six thousand, six hundred forty-two".