268586689169 has 4 divisors (see below), whose sum is σ = 268607456820. Its totient is φ = 268565921520.

The previous prime is 268586689141. The next prime is 268586689201. The reversal of 268586689169 is 961986685862.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 226469388544 + 42117300625 = 475888^2 + 205225^2 .

It is a cyclic number.

It is not a de Polignac number, because 268586689169 - 2¹⁶ = 268586623633 is a prime.

It is a super-2 number, since 2×268586689169² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 268586689096 and 268586689105.

It is not an unprimeable number, because it can be changed into a prime (268586629169) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10364414 + ... + 10390295.

It is an arithmetic number, because the mean of its divisors is an integer number (67151864205).

Almost surely, 2^268586689169 is an apocalyptic number.

It is an amenable number.

268586689169 is a deficient number, since it is larger than the sum of its proper divisors (20767651).

268586689169 is a wasteful number, since it uses less digits than its factorization.

268586689169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20767650.

The product of its digits is 537477120, while the sum is 74.

The spelling of 268586689169 in words is "two hundred sixty-eight billion, five hundred eighty-six million, six hundred eighty-nine thousand, one hundred sixty-nine".