268756907 has 2 divisors, whose sum is σ = 268756908. Its totient is φ = 268756906.

The previous prime is 268756889. The next prime is 268756967. The reversal of 268756907 is 709657862.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 268756907 - 2¹² = 268752811 is a prime.

It is not a weakly prime, because it can be changed into another prime (268756967) 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, 134378453 + 134378454.

It is an arithmetic number, because the mean of its divisors is an integer number (134378454).

Almost surely, 2^268756907 is an apocalyptic number.

268756907 is a deficient number, since it is larger than the sum of its proper divisors (1).

268756907 is an equidigital number, since it uses as much as digits as its factorization.

268756907 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1270080, while the sum is 50.

The square root of 268756907 is about 16393.8069709266. The cubic root of 268756907 is about 645.3369687290.

The spelling of 268756907 in words is "two hundred sixty-eight million, seven hundred fifty-six thousand, nine hundred seven".