8479126657 has 4 divisors (see below), whose sum is σ = 8479386436. Its totient is φ = 8478866880.

The previous prime is 8479126651. The next prime is 8479126661. The reversal of 8479126657 is 7566219748.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7716041281 + 763085376 = 87841^2 + 27624^2 .

It is a cyclic number.

It is not a de Polignac number, because 8479126657 - 2¹¹ = 8479124609 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8479126598 and 8479126607.

It is not an unprimeable number, because it can be changed into a prime (8479126651) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72468 + ... + 149029.

It is an arithmetic number, because the mean of its divisors is an integer number (2119846609).

Almost surely, 2^8479126657 is an apocalyptic number.

It is an amenable number.

8479126657 is a deficient number, since it is larger than the sum of its proper divisors (259779).

8479126657 is a wasteful number, since it uses less digits than its factorization.

8479126657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259778.

The product of its digits is 5080320, while the sum is 55.

The square root of 8479126657 is about 92082.1733942026. The cubic root of 8479126657 is about 2039.1556368026.

The spelling of 8479126657 in words is "eight billion, four hundred seventy-nine million, one hundred twenty-six thousand, six hundred fifty-seven".