269686815481 has 2 divisors, whose sum is σ = 269686815482. Its totient is φ = 269686815480.

The previous prime is 269686815439. The next prime is 269686815577. The reversal of 269686815481 is 184518686962.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 266049640000 + 3637175481 = 515800^2 + 60309^2 .

It is a cyclic number.

It is not a de Polignac number, because 269686815481 - 2²⁵ = 269653261049 is a prime.

It is a super-2 number, since 2×269686815481² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (269686815781) 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 as a sum of consecutive naturals, namely, 134843407740 + 134843407741.

It is an arithmetic number, because the mean of its divisors is an integer number (134843407741).

Almost surely, 2^269686815481 is an apocalyptic number.

It is an amenable number.

269686815481 is a deficient number, since it is larger than the sum of its proper divisors (1).

269686815481 is an equidigital number, since it uses as much as digits as its factorization.

269686815481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 39813120, while the sum is 64.

The spelling of 269686815481 in words is "two hundred sixty-nine billion, six hundred eighty-six million, eight hundred fifteen thousand, four hundred eighty-one".