19378936418713 has 2 divisors, whose sum is σ = 19378936418714. Its totient is φ = 19378936418712.

The previous prime is 19378936418683. The next prime is 19378936418759. The reversal of 19378936418713 is 31781463987391.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12439989999369 + 6938946419344 = 3527037^2 + 2634188^2 .

It is a cyclic number.

It is not a de Polignac number, because 19378936418713 - 2⁹ = 19378936418201 is a prime.

It is not a weakly prime, because it can be changed into another prime (19378936418113) 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, 9689468209356 + 9689468209357.

It is an arithmetic number, because the mean of its divisors is an integer number (9689468209357).

Almost surely, 2^{19378936418713} is an apocalyptic number.

It is an amenable number.

19378936418713 is a deficient number, since it is larger than the sum of its proper divisors (1).

19378936418713 is an equidigital number, since it uses as much as digits as its factorization.

19378936418713 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 164602368, while the sum is 70.

The spelling of 19378936418713 in words is "nineteen trillion, three hundred seventy-eight billion, nine hundred thirty-six million, four hundred eighteen thousand, seven hundred thirteen".