1311844087739 has 2 divisors, whose sum is σ = 1311844087740. Its totient is φ = 1311844087738.

The previous prime is 1311844087703. The next prime is 1311844087751. The reversal of 1311844087739 is 9377804481131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1311844087739 - 2³² = 1307549120443 is a prime.

It is not a weakly prime, because it can be changed into another prime (1311844087759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 655922043869 + 655922043870.

It is an arithmetic number, because the mean of its divisors is an integer number (655922043870).

Almost surely, 2^{1311844087739} is an apocalyptic number.

1311844087739 is a deficient number, since it is larger than the sum of its proper divisors (1).

1311844087739 is an equidigital number, since it uses as much as digits as its factorization.

1311844087739 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4064256, while the sum is 56.

The spelling of 1311844087739 in words is "one trillion, three hundred eleven billion, eight hundred forty-four million, eighty-seven thousand, seven hundred thirty-nine".