1381368143927 has 2 divisors, whose sum is σ = 1381368143928. Its totient is φ = 1381368143926.

The previous prime is 1381368143887. The next prime is 1381368144007. The reversal of 1381368143927 is 7293418631831.

It is a weak prime.

It is an emirp because it is prime and its reverse (7293418631831) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1381368143927 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1381368143527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 690684071963 + 690684071964.

It is an arithmetic number, because the mean of its divisors is an integer number (690684071964).

Almost surely, 2^{1381368143927} is an apocalyptic number.

1381368143927 is a deficient number, since it is larger than the sum of its proper divisors (1).

1381368143927 is an equidigital number, since it uses as much as digits as its factorization.

1381368143927 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5225472, while the sum is 56.

The spelling of 1381368143927 in words is "one trillion, three hundred eighty-one billion, three hundred sixty-eight million, one hundred forty-three thousand, nine hundred twenty-seven".