268759833661 has 16 divisors (see below), whose sum is σ = 297293960448. Its totient is φ = 240911193600.

The previous prime is 268759833593. The next prime is 268759833679. The reversal of 268759833661 is 166338957862.

It is not a de Polignac number, because 268759833661 - 2²¹ = 268757736509 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 268759833593 and 268759833602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268759833161) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2869605 + ... + 2961781.

It is an arithmetic number, because the mean of its divisors is an integer number (18580872528).

Almost surely, 2^268759833661 is an apocalyptic number.

It is an amenable number.

268759833661 is a deficient number, since it is larger than the sum of its proper divisors (28534126787).

268759833661 is a wasteful number, since it uses less digits than its factorization.

268759833661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95892.

The product of its digits is 78382080, while the sum is 64.

The spelling of 268759833661 in words is "two hundred sixty-eight billion, seven hundred fifty-nine million, eight hundred thirty-three thousand, six hundred sixty-one".