8226517136857 has 16 divisors (see below), whose sum is σ = 8419447599120. Its totient is φ = 8035037337600.

The previous prime is 8226517136819. The next prime is 8226517136861. The reversal of 8226517136857 is 7586317156228.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 75429326736 + 8151087810121 = 274644^2 + 2855011^2 .

It is a cyclic number.

It is not a de Polignac number, because 8226517136857 - 2²⁷ = 8226382919129 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8226517136795 and 8226517136804.

It is not an unprimeable number, because it can be changed into a prime (8226517136557) 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, 15662257 + ... + 16178977.

It is an arithmetic number, because the mean of its divisors is an integer number (526215474945).

Almost surely, 2^{8226517136857} is an apocalyptic number.

It is an amenable number.

8226517136857 is a deficient number, since it is larger than the sum of its proper divisors (192930462263).

8226517136857 is a wasteful number, since it uses less digits than its factorization.

8226517136857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 518124.

The product of its digits is 33868800, while the sum is 61.

The spelling of 8226517136857 in words is "eight trillion, two hundred twenty-six billion, five hundred seventeen million, one hundred thirty-six thousand, eight hundred fifty-seven".