8475591996369 has 27 divisors (see below), whose sum is σ = 12548932929169. Its totient is φ = 5512347257280.

The previous prime is 8475591996367. The next prime is 8475591996373. The reversal of 8475591996369 is 9636991955748.

The square root of 8475591996369 is 2911287.

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

8475591996369 is a `hidden beast` number, since 8 + 47 + 559 + 19 + 9 + 6 + 3 + 6 + 9 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 3713857016769 + 4761734979600 = 1927137^2 + 2182140^2 .

It is not a de Polignac number, because 8475591996369 - 2¹ = 8475591996367 is a prime.

It is a super-2 number, since 2×8475591996369² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (8475591996367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 358076467 + ... + 358100135.

Almost surely, 2^{8475591996369} is an apocalyptic number.

8475591996369 is the 2911287-th square number.

8475591996369 is the 1455644-th centered octagonal number.

It is an amenable number.

8475591996369 is a deficient number, since it is larger than the sum of its proper divisors (4073340932800).

8475591996369 is an frugal number, since it uses more digits than its factorization.

8475591996369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47426 (or 23713 counting only the distinct ones).

The product of its digits is 3968092800, while the sum is 81.

Multiplying 8475591996369 by its sum of digits (81), we get a square (686522951705889 = 26201583²).

The spelling of 8475591996369 in words is "eight trillion, four hundred seventy-five billion, five hundred ninety-one million, nine hundred ninety-six thousand, three hundred sixty-nine".