268999117 has 4 divisors (see below), whose sum is σ = 269325216. Its totient is φ = 268673020.

The previous prime is 268999103. The next prime is 268999151. The reversal of 268999117 is 711999862.

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 not a de Polignac number, because 268999117 - 2¹⁵ = 268966349 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 (268999217) 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 3 ways as a sum of consecutive naturals, for example, 161809 + ... + 163462.

It is an arithmetic number, because the mean of its divisors is an integer number (67331304).

Almost surely, 2^268999117 is an apocalyptic number.

It is an amenable number.

268999117 is a deficient number, since it is larger than the sum of its proper divisors (326099).

268999117 is an equidigital number, since it uses as much as digits as its factorization.

268999117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326098.

The product of its digits is 489888, while the sum is 52.

The square root of 268999117 is about 16401.1925481045. The cubic root of 268999117 is about 645.5307747681.

The spelling of 268999117 in words is "two hundred sixty-eight million, nine hundred ninety-nine thousand, one hundred seventeen".