1268516959 has 2 divisors, whose sum is σ = 1268516960. Its totient is φ = 1268516958.

The previous prime is 1268516947. The next prime is 1268516987. The reversal of 1268516959 is 9596158621.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1268516959 - 2²¹ = 1266419807 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1268516929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 634258479 + 634258480.

It is an arithmetic number, because the mean of its divisors is an integer number (634258480).

Almost surely, 2^1268516959 is an apocalyptic number.

1268516959 is a deficient number, since it is larger than the sum of its proper divisors (1).

1268516959 is an equidigital number, since it uses as much as digits as its factorization.

1268516959 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1166400, while the sum is 52.

The square root of 1268516959 is about 35616.2457173689. The cubic root of 1268516959 is about 1082.5104377384.

The spelling of 1268516959 in words is "one billion, two hundred sixty-eight million, five hundred sixteen thousand, nine hundred fifty-nine".