19671416013349 has 2 divisors, whose sum is σ = 19671416013350. Its totient is φ = 19671416013348.

The previous prime is 19671416013299. The next prime is 19671416013371. The reversal of 19671416013349 is 94331061417691.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19329124320100 + 342291693249 = 4396490^2 + 585057^2 .

It is a cyclic number.

It is not a de Polignac number, because 19671416013349 - 2⁹ = 19671416012837 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 19671416013349.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19671416010349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9835708006674 + 9835708006675.

It is an arithmetic number, because the mean of its divisors is an integer number (9835708006675).

Almost surely, 2^{19671416013349} is an apocalyptic number.

It is an amenable number.

19671416013349 is a deficient number, since it is larger than the sum of its proper divisors (1).

19671416013349 is an equidigital number, since it uses as much as digits as its factorization.

19671416013349 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2939328, while the sum is 55.

The spelling of 19671416013349 in words is "nineteen trillion, six hundred seventy-one billion, four hundred sixteen million, thirteen thousand, three hundred forty-nine".