268871999 has 8 divisors (see below), whose sum is σ = 296220240. Its totient is φ = 242008000.

The previous prime is 268871947. The next prime is 268872011. The reversal of 268871999 is 999178862.

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

It is a cyclic number.

It is not a de Polignac number, because 268871999 - 2²⁴ = 252094783 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 (268871599) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119894 + ... + 122115.

It is an arithmetic number, because the mean of its divisors is an integer number (37027530).

Almost surely, 2^268871999 is an apocalyptic number.

268871999 is a deficient number, since it is larger than the sum of its proper divisors (27348241).

268871999 is a wasteful number, since it uses less digits than its factorization.

268871999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242121.

The product of its digits is 3919104, while the sum is 59.

The square root of 268871999 is about 16397.3168231879. The cubic root of 268871999 is about 645.4290749172.

The spelling of 268871999 in words is "two hundred sixty-eight million, eight hundred seventy-one thousand, nine hundred ninety-nine".