268782771 has 8 divisors (see below), whose sum is σ = 360955840. Its totient is φ = 177899112.

The previous prime is 268782743. The next prime is 268782779. The reversal of 268782771 is 177287862.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 268782771 - 2¹⁴ = 268766387 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 268782771.

It is not an unprimeable number, because it can be changed into a prime (268782779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 321865 + ... + 322698.

It is an arithmetic number, because the mean of its divisors is an integer number (45119480).

Almost surely, 2^268782771 is an apocalyptic number.

268782771 is a deficient number, since it is larger than the sum of its proper divisors (92173069).

268782771 is a wasteful number, since it uses less digits than its factorization.

268782771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 644705.

The product of its digits is 526848, while the sum is 48.

The square root of 268782771 is about 16394.5957864169. The cubic root of 268782771 is about 645.3576695427.

It can be divided in two parts, 2687 and 82771, that added together give a palindrome (85458).

The spelling of 268782771 in words is "two hundred sixty-eight million, seven hundred eighty-two thousand, seven hundred seventy-one".