1355443717871 has 2 divisors, whose sum is σ = 1355443717872. Its totient is φ = 1355443717870.

The previous prime is 1355443717843. The next prime is 1355443717907. The reversal of 1355443717871 is 1787173445531.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1355443717871 - 2¹⁸ = 1355443455727 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1355443717801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 677721858935 + 677721858936.

It is an arithmetic number, because the mean of its divisors is an integer number (677721858936).

Almost surely, 2^{1355443717871} is an apocalyptic number.

1355443717871 is a deficient number, since it is larger than the sum of its proper divisors (1).

1355443717871 is an equidigital number, since it uses as much as digits as its factorization.

1355443717871 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9878400, while the sum is 56.

The spelling of 1355443717871 in words is "one trillion, three hundred fifty-five billion, four hundred forty-three million, seven hundred seventeen thousand, eight hundred seventy-one".