8686823220255 has 16 divisors (see below), whose sum is σ = 13899320696160. Its totient is φ = 4632837869568.

The previous prime is 8686823220233. The next prime is 8686823220263. The reversal of 8686823220255 is 5520223286868.

It is not a de Polignac number, because 8686823220255 - 2¹⁰ = 8686823219231 is a prime.

It is a super-2 number, since 2×8686823220255² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 8686823220195 and 8686823220204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7872210 + ... + 8907599.

It is an arithmetic number, because the mean of its divisors is an integer number (868707543510).

Almost surely, 2^{8686823220255} is an apocalyptic number.

8686823220255 is a deficient number, since it is larger than the sum of its proper divisors (5212497475905).

8686823220255 is a wasteful number, since it uses less digits than its factorization.

8686823220255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16814330.

The product of its (nonzero) digits is 22118400, while the sum is 57.

The spelling of 8686823220255 in words is "eight trillion, six hundred eighty-six billion, eight hundred twenty-three million, two hundred twenty thousand, two hundred fifty-five".