268969279 has 2 divisors, whose sum is σ = 268969280. Its totient is φ = 268969278.

The previous prime is 268969277. The next prime is 268969319. The reversal of 268969279 is 972969862.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 268969279 - 2¹ = 268969277 is a prime.

Together with 268969277, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (268969271) 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 as a sum of consecutive naturals, namely, 134484639 + 134484640.

It is an arithmetic number, because the mean of its divisors is an integer number (134484640).

Almost surely, 2^268969279 is an apocalyptic number.

268969279 is a deficient number, since it is larger than the sum of its proper divisors (1).

268969279 is an equidigital number, since it uses as much as digits as its factorization.

268969279 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5878656, while the sum is 58.

The square root of 268969279 is about 16400.2828939016. The cubic root of 268969279 is about 645.5069059667.

Subtracting from 268969279 its sum of digits (58), we obtain a triangular number (268969221 = T₂₃₁₉₃).

The spelling of 268969279 in words is "two hundred sixty-eight million, nine hundred sixty-nine thousand, two hundred seventy-nine".