8478616317 has 8 divisors (see below), whose sum is σ = 11459682624. Its totient is φ = 5574980448.

The previous prime is 8478616309. The next prime is 8478616319. The reversal of 8478616317 is 7136168748.

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

It is not a de Polignac number, because 8478616317 - 2³ = 8478616309 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8478616317.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8478616319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19357353 + ... + 19357790.

It is an arithmetic number, because the mean of its divisors is an integer number (1432460328).

Almost surely, 2^8478616317 is an apocalyptic number.

It is an amenable number.

8478616317 is a deficient number, since it is larger than the sum of its proper divisors (2981066307).

8478616317 is a wasteful number, since it uses less digits than its factorization.

8478616317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38715219.

The product of its digits is 1354752, while the sum is 51.

The square root of 8478616317 is about 92079.4022406749. The cubic root of 8478616317 is about 2039.1147252162.

The spelling of 8478616317 in words is "eight billion, four hundred seventy-eight million, six hundred sixteen thousand, three hundred seventeen".