19385106313 has 2 divisors, whose sum is σ = 19385106314. Its totient is φ = 19385106312.

The previous prime is 19385106283. The next prime is 19385106317. The reversal of 19385106313 is 31360158391.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18776398729 + 608707584 = 137027^2 + 24672^2 .

It is an emirp because it is prime and its reverse (31360158391) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 19385106313 - 2²⁵ = 19351551881 is a prime.

It is not a weakly prime, because it can be changed into another prime (19385106317) 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, 9692553156 + 9692553157.

It is an arithmetic number, because the mean of its divisors is an integer number (9692553157).

Almost surely, 2^19385106313 is an apocalyptic number.

It is an amenable number.

19385106313 is a deficient number, since it is larger than the sum of its proper divisors (1).

19385106313 is an equidigital number, since it uses as much as digits as its factorization.

19385106313 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 58320, while the sum is 40.

The spelling of 19385106313 in words is "nineteen billion, three hundred eighty-five million, one hundred six thousand, three hundred thirteen".