8275477684369 has 81 divisors (see below), whose sum is σ = 10273538656017. Its totient is φ = 6646173605568.

The previous prime is 8275477684361. The next prime is 8275477684379. The reversal of 8275477684369 is 9634867745728.

The square root of 8275477684369 is 2876713.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 1761181139025 + 6514296545344 = 1327095^2 + 2552312^2 .

It is not a de Polignac number, because 8275477684369 - 2³ = 8275477684361 is a prime.

It is a super-2 number, since 2×8275477684369² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 8275477684295 and 8275477684304.

It is not an unprimeable number, because it can be changed into a prime (8275477684361) by changing a digit.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 21606991152 + ... + 21606991534.

Almost surely, 2^{8275477684369} is an apocalyptic number.

8275477684369 is the 2876713-rd square number.

8275477684369 is the 1438357-th centered octagonal number.

It is an amenable number.

8275477684369 is a deficient number, since it is larger than the sum of its proper divisors (1998060971648).

8275477684369 is an frugal number, since it uses more digits than its factorization.

8275477684369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 912 (or 456 counting only the distinct ones).

The product of its digits is 3413975040, while the sum is 76.

The spelling of 8275477684369 in words is "eight trillion, two hundred seventy-five billion, four hundred seventy-seven million, six hundred eighty-four thousand, three hundred sixty-nine".