16871938675213 has 2 divisors, whose sum is σ = 16871938675214. Its totient is φ = 16871938675212.

The previous prime is 16871938675199. The next prime is 16871938675219. The reversal of 16871938675213 is 31257683917861.

16871938675213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8973607377604 + 7898331297609 = 2995598^2 + 2810397^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16871938675213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16871938675219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8435969337606 + 8435969337607.

It is an arithmetic number, because the mean of its divisors is an integer number (8435969337607).

Almost surely, 2^{16871938675213} is an apocalyptic number.

It is an amenable number.

16871938675213 is a deficient number, since it is larger than the sum of its proper divisors (1).

16871938675213 is an equidigital number, since it uses as much as digits as its factorization.

16871938675213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 91445760, while the sum is 67.

The spelling of 16871938675213 in words is "sixteen trillion, eight hundred seventy-one billion, nine hundred thirty-eight million, six hundred seventy-five thousand, two hundred thirteen".