268484569 has 2 divisors, whose sum is σ = 268484570. Its totient is φ = 268484568.

The previous prime is 268484533. The next prime is 268484597. The reversal of 268484569 is 965484862.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 265201225 + 3283344 = 16285^2 + 1812^2 .

It is a cyclic number.

It is not a de Polignac number, because 268484569 - 2⁹ = 268484057 is a prime.

It is a super-2 number, since 2×268484569² = 144167927582231522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (268484509) 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 as a sum of consecutive naturals, namely, 134242284 + 134242285.

It is an arithmetic number, because the mean of its divisors is an integer number (134242285).

Almost surely, 2^268484569 is an apocalyptic number.

It is an amenable number.

268484569 is a deficient number, since it is larger than the sum of its proper divisors (1).

268484569 is an equidigital number, since it uses as much as digits as its factorization.

268484569 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3317760, while the sum is 52.

The square root of 268484569 is about 16385.4987412651. The cubic root of 268484569 is about 645.1189164395.

The spelling of 268484569 in words is "two hundred sixty-eight million, four hundred eighty-four thousand, five hundred sixty-nine".