8122227878817 has 60 divisors (see below), whose sum is σ = 13139883387180. Its totient is φ = 4997700145152.

The previous prime is 8122227878771. The next prime is 8122227878833. The reversal of 8122227878817 is 7188787222218.

It can be written as a sum of positive squares in 6 ways, for example, as 1062876459681 + 7059351419136 = 1030959^2 + 2656944^2 .

It is not a de Polignac number, because 8122227878817 - 2¹¹ = 8122227876769 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8122227878917) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 133697473 + ... + 133758209.

It is an arithmetic number, because the mean of its divisors is an integer number (218998056453).

Almost surely, 2^{8122227878817} is an apocalyptic number.

It is an amenable number.

8122227878817 is a deficient number, since it is larger than the sum of its proper divisors (5017655508363).

8122227878817 is a wasteful number, since it uses less digits than its factorization.

8122227878817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70544 (or 70522 counting only the distinct ones).

The product of its digits is 22478848, while the sum is 63.

The spelling of 8122227878817 in words is "eight trillion, one hundred twenty-two billion, two hundred twenty-seven million, eight hundred seventy-eight thousand, eight hundred seventeen".