268217060173 has 4 divisors (see below), whose sum is σ = 269368206588. Its totient is φ = 267065913760.

The previous prime is 268217060171. The next prime is 268217060203. The reversal of 268217060173 is 371060712862.

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 117911197924 + 150305862249 = 343382^2 + 387693^2 .

It is a cyclic number.

It is not a de Polignac number, because 268217060173 - 2¹ = 268217060171 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268217060171) 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, 575572858 + ... + 575573323.

It is an arithmetic number, because the mean of its divisors is an integer number (67342051647).

Almost surely, 2^268217060173 is an apocalyptic number.

It is an amenable number.

268217060173 is a deficient number, since it is larger than the sum of its proper divisors (1151146415).

268217060173 is a wasteful number, since it uses less digits than its factorization.

268217060173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1151146414.

The product of its (nonzero) digits is 169344, while the sum is 43.

The spelling of 268217060173 in words is "two hundred sixty-eight billion, two hundred seventeen million, sixty thousand, one hundred seventy-three".