1268968427 has 2 divisors, whose sum is σ = 1268968428. Its totient is φ = 1268968426.

The previous prime is 1268968403. The next prime is 1268968433. The reversal of 1268968427 is 7248698621.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1268968427 - 2¹² = 1268964331 is a prime.

It is a super-2 number, since 2×1268968427² = 3220561737445708658, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1268961427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 634484213 + 634484214.

It is an arithmetic number, because the mean of its divisors is an integer number (634484214).

Almost surely, 2^1268968427 is an apocalyptic number.

1268968427 is a deficient number, since it is larger than the sum of its proper divisors (1).

1268968427 is an equidigital number, since it uses as much as digits as its factorization.

1268968427 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2322432, while the sum is 53.

The square root of 1268968427 is about 35622.5831039805. The cubic root of 1268968427 is about 1082.6388451282.

The spelling of 1268968427 in words is "one billion, two hundred sixty-eight million, nine hundred sixty-eight thousand, four hundred twenty-seven".