8422712667 has 12 divisors (see below), whose sum is σ = 12616738680. Its totient is φ = 5615141616.

The previous prime is 8422712663. The next prime is 8422712681. The reversal of 8422712667 is 7662172248.

It is a happy number.

It is not a de Polignac number, because 8422712667 - 2² = 8422712663 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8422712663) 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 11 ways as a sum of consecutive naturals, for example, 17330442 + ... + 17330927.

It is an arithmetic number, because the mean of its divisors is an integer number (1051394890).

Almost surely, 2^8422712667 is an apocalyptic number.

8422712667 is a deficient number, since it is larger than the sum of its proper divisors (4194026013).

8422712667 is an equidigital number, since it uses as much as digits as its factorization.

8422712667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34661384 (or 34661372 counting only the distinct ones).

The product of its digits is 451584, while the sum is 45.

The square root of 8422712667 is about 91775.3380108186. The cubic root of 8422712667 is about 2034.6232133679.

The spelling of 8422712667 in words is "eight billion, four hundred twenty-two million, seven hundred twelve thousand, six hundred sixty-seven".