1271326676699 has 2 divisors, whose sum is σ = 1271326676700. Its totient is φ = 1271326676698.

The previous prime is 1271326676693. The next prime is 1271326676713. The reversal of 1271326676699 is 9966766231721.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1271326676699 is a prime.

It is not a weakly prime, because it can be changed into another prime (1271326676693) 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, 635663338349 + 635663338350.

It is an arithmetic number, because the mean of its divisors is an integer number (635663338350).

Almost surely, 2^{1271326676699} is an apocalyptic number.

1271326676699 is a deficient number, since it is larger than the sum of its proper divisors (1).

1271326676699 is an equidigital number, since it uses as much as digits as its factorization.

1271326676699 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 61725888, while the sum is 65.

The spelling of 1271326676699 in words is "one trillion, two hundred seventy-one billion, three hundred twenty-six million, six hundred seventy-six thousand, six hundred ninety-nine".