1271065125793 has 2 divisors, whose sum is σ = 1271065125794. Its totient is φ = 1271065125792.

The previous prime is 1271065125763. The next prime is 1271065125851. The reversal of 1271065125793 is 3975215601721.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 885383138704 + 385681987089 = 940948^2 + 621033^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1271065125793 is a prime.

It is not a weakly prime, because it can be changed into another prime (1271065125703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 635532562896 + 635532562897.

It is an arithmetic number, because the mean of its divisors is an integer number (635532562897).

Almost surely, 2^{1271065125793} is an apocalyptic number.

It is an amenable number.

1271065125793 is a deficient number, since it is larger than the sum of its proper divisors (1).

1271065125793 is an equidigital number, since it uses as much as digits as its factorization.

1271065125793 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 793800, while the sum is 49.

The spelling of 1271065125793 in words is "one trillion, two hundred seventy-one billion, sixty-five million, one hundred twenty-five thousand, seven hundred ninety-three".