268518967 has 2 divisors, whose sum is σ = 268518968. Its totient is φ = 268518966.

The previous prime is 268518937. The next prime is 268518973. The reversal of 268518967 is 769815862.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 268518967 - 2¹⁹ = 267994679 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (268518937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134259483 + 134259484.

It is an arithmetic number, because the mean of its divisors is an integer number (134259484).

Almost surely, 2^268518967 is an apocalyptic number.

268518967 is a deficient number, since it is larger than the sum of its proper divisors (1).

268518967 is an equidigital number, since it uses as much as digits as its factorization.

268518967 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1451520, while the sum is 52.

The square root of 268518967 is about 16386.5483552821. The cubic root of 268518967 is about 645.1464659469.

The spelling of 268518967 in words is "two hundred sixty-eight million, five hundred eighteen thousand, nine hundred sixty-seven".