8422278009 has 8 divisors (see below), whose sum is σ = 11231906400. Its totient is φ = 5613750816.

The previous prime is 8422277999. The next prime is 8422278019. The reversal of 8422278009 is 9008722248.

It is an interprime number because it is at equal distance from previous prime (8422277999) and next prime (8422278019).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 8422278009 - 2⁷ = 8422277881 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (8422278019) 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 7 ways as a sum of consecutive naturals, for example, 257284 + ... + 288165.

It is an arithmetic number, because the mean of its divisors is an integer number (1403988300).

Almost surely, 2^8422278009 is an apocalyptic number.

It is an amenable number.

8422278009 is a deficient number, since it is larger than the sum of its proper divisors (2809628391).

8422278009 is a wasteful number, since it uses less digits than its factorization.

8422278009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 550599.

The product of its (nonzero) digits is 129024, while the sum is 42.

The square root of 8422278009 is about 91772.9699257902. The cubic root of 8422278009 is about 2034.5882135404.

The spelling of 8422278009 in words is "eight billion, four hundred twenty-two million, two hundred seventy-eight thousand, nine".