19896904609367 has 2 divisors, whose sum is σ = 19896904609368. Its totient is φ = 19896904609366.

The previous prime is 19896904609261. The next prime is 19896904609399. The reversal of 19896904609367 is 76390640969891.

It is a strong prime.

It is an emirp because it is prime and its reverse (76390640969891) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 19896904609367 - 2¹⁸ = 19896904347223 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19896904609867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9948452304683 + 9948452304684.

It is an arithmetic number, because the mean of its divisors is an integer number (9948452304684).

Almost surely, 2^{19896904609367} is an apocalyptic number.

19896904609367 is a deficient number, since it is larger than the sum of its proper divisors (1).

19896904609367 is an equidigital number, since it uses as much as digits as its factorization.

19896904609367 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 952342272, while the sum is 77.

The spelling of 19896904609367 in words is "nineteen trillion, eight hundred ninety-six billion, nine hundred four million, six hundred nine thousand, three hundred sixty-seven".