8479422657 has 16 divisors (see below), whose sum is σ = 13223272000. Its totient is φ = 5355424512.

The previous prime is 8479422647. The next prime is 8479422661. The reversal of 8479422657 is 7562249748.

It is not a de Polignac number, because 8479422657 - 2²⁰ = 8478374081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8479422617) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8264032 + ... + 8265057.

It is an arithmetic number, because the mean of its divisors is an integer number (826454500).

Almost surely, 2^8479422657 is an apocalyptic number.

It is an amenable number.

8479422657 is a deficient number, since it is larger than the sum of its proper divisors (4743849343).

8479422657 is a wasteful number, since it uses less digits than its factorization.

8479422657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16529117 (or 16529111 counting only the distinct ones).

The product of its digits is 6773760, while the sum is 54.

The square root of 8479422657 is about 92083.7806402409. The cubic root of 8479422657 is about 2039.1793649949.

The spelling of 8479422657 in words is "eight billion, four hundred seventy-nine million, four hundred twenty-two thousand, six hundred fifty-seven".