268278775 has 6 divisors (see below), whose sum is σ = 332665712. Its totient is φ = 214623000.

The previous prime is 268278713. The next prime is 268278781. The reversal of 268278775 is 577872862.

It is not a de Polignac number, because 268278775 - 2²³ = 259890167 is a prime.

It is a super-2 number, since 2×268278775² = 143947002231001250, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5365551 + ... + 5365600.

Almost surely, 2^268278775 is an apocalyptic number.

268278775 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

268278775 is a deficient number, since it is larger than the sum of its proper divisors (64386937).

268278775 is a wasteful number, since it uses less digits than its factorization.

268278775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10731161 (or 10731156 counting only the distinct ones).

The product of its digits is 2634240, while the sum is 52.

The square root of 268278775 is about 16379.2177774154. The cubic root of 268278775 is about 644.9540459618.

It can be divided in two parts, 2682787 and 75, that added together give a palindrome (2682862).

The spelling of 268278775 in words is "two hundred sixty-eight million, two hundred seventy-eight thousand, seven hundred seventy-five".