268960777 has 2 divisors, whose sum is σ = 268960778. Its totient is φ = 268960776.

The previous prime is 268960693. The next prime is 268960817. The reversal of 268960777 is 777069862.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 144504441 + 124456336 = 12021^2 + 11156^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-268960777 is a prime.

It is not a weakly prime, because it can be changed into another prime (268969777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134480388 + 134480389.

It is an arithmetic number, because the mean of its divisors is an integer number (134480389).

Almost surely, 2^268960777 is an apocalyptic number.

It is an amenable number.

268960777 is a deficient number, since it is larger than the sum of its proper divisors (1).

268960777 is an equidigital number, since it uses as much as digits as its factorization.

268960777 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1778112, while the sum is 52.

The square root of 268960777 is about 16400.0236890073. The cubic root of 268960777 is about 645.5001044991.

The spelling of 268960777 in words is "two hundred sixty-eight million, nine hundred sixty thousand, seven hundred seventy-seven".