1391168363191 has 2 divisors, whose sum is σ = 1391168363192. Its totient is φ = 1391168363190.

The previous prime is 1391168363149. The next prime is 1391168363209. The reversal of 1391168363191 is 1913638611931.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1391168363191 - 2³⁵ = 1356808624823 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1391168363111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 695584181595 + 695584181596.

It is an arithmetic number, because the mean of its divisors is an integer number (695584181596).

Almost surely, 2^{1391168363191} is an apocalyptic number.

1391168363191 is a deficient number, since it is larger than the sum of its proper divisors (1).

1391168363191 is an equidigital number, since it uses as much as digits as its factorization.

1391168363191 is an evil number, because the sum of its binary digits is even.

The product of its digits is 629856, while the sum is 52.

The spelling of 1391168363191 in words is "one trillion, three hundred ninety-one billion, one hundred sixty-eight million, three hundred sixty-three thousand, one hundred ninety-one".