268187823 has 12 divisors (see below), whose sum is σ = 387806328. Its totient is φ = 178596240.

The previous prime is 268187813. The next prime is 268187827. The reversal of 268187823 is 328781862.

It is not a de Polignac number, because 268187823 - 2⁴ = 268187807 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268187827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7365 + ... + 24302.

It is an arithmetic number, because the mean of its divisors is an integer number (32317194).

Almost surely, 2^268187823 is an apocalyptic number.

268187823 is a deficient number, since it is larger than the sum of its proper divisors (119618505).

268187823 is a wasteful number, since it uses less digits than its factorization.

268187823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32614 (or 32611 counting only the distinct ones).

The product of its digits is 258048, while the sum is 45.

The square root of 268187823 is about 16376.4410968928. The cubic root of 268187823 is about 644.8811535130.

The spelling of 268187823 in words is "two hundred sixty-eight million, one hundred eighty-seven thousand, eight hundred twenty-three".