268718293 has 4 divisors (see below), whose sum is σ = 269161600. Its totient is φ = 268274988.

The previous prime is 268718243. The next prime is 268718297. The reversal of 268718293 is 392817862.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-268718293 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 (268718297) 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, 220743 + ... + 221956.

It is an arithmetic number, because the mean of its divisors is an integer number (67290400).

Almost surely, 2^268718293 is an apocalyptic number.

It is an amenable number.

268718293 is a deficient number, since it is larger than the sum of its proper divisors (443307).

268718293 is an equidigital number, since it uses as much as digits as its factorization.

268718293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 443306.

The product of its digits is 290304, while the sum is 46.

The square root of 268718293 is about 16392.6292277963. The cubic root of 268718293 is about 645.3060607045.

It can be divided in two parts, 268718 and 293, that added together give a triangular number (269011 = T₇₃₃).

The spelling of 268718293 in words is "two hundred sixty-eight million, seven hundred eighteen thousand, two hundred ninety-three".