1381936611373 has 2 divisors, whose sum is σ = 1381936611374. Its totient is φ = 1381936611372.

The previous prime is 1381936611337. The next prime is 1381936611427. The reversal of 1381936611373 is 3731166391831.

Together with previous prime (1381936611337) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1381936611364 + 9 = 1175558^2 + 3^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1381936611373 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1381936611373.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1381936611073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 690968305686 + 690968305687.

It is an arithmetic number, because the mean of its divisors is an integer number (690968305687).

Almost surely, 2^{1381936611373} is an apocalyptic number.

It is an amenable number.

1381936611373 is a deficient number, since it is larger than the sum of its proper divisors (1).

1381936611373 is an equidigital number, since it uses as much as digits as its factorization.

1381936611373 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1469664, while the sum is 52.

The spelling of 1381936611373 in words is "one trillion, three hundred eighty-one billion, nine hundred thirty-six million, six hundred eleven thousand, three hundred seventy-three".