268311773 has 2 divisors, whose sum is σ = 268311774. Its totient is φ = 268311772.

The previous prime is 268311761. The next prime is 268311779. The reversal of 268311773 is 377113862.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 267584164 + 727609 = 16358^2 + 853^2 .

It is a cyclic number.

It is not a de Polignac number, because 268311773 - 2²⁶ = 201202909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (268311779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134155886 + 134155887.

It is an arithmetic number, because the mean of its divisors is an integer number (134155887).

Almost surely, 2^268311773 is an apocalyptic number.

It is an amenable number.

268311773 is a deficient number, since it is larger than the sum of its proper divisors (1).

268311773 is an equidigital number, since it uses as much as digits as its factorization.

268311773 is an evil number, because the sum of its binary digits is even.

The product of its digits is 42336, while the sum is 38.

The square root of 268311773 is about 16380.2250595039. The cubic root of 268311773 is about 644.9804877618.

The spelling of 268311773 in words is "two hundred sixty-eight million, three hundred eleven thousand, seven hundred seventy-three".