19144429340591 has 2 divisors, whose sum is σ = 19144429340592. Its totient is φ = 19144429340590.

The previous prime is 19144429340563. The next prime is 19144429340611. The reversal of 19144429340591 is 19504392444191.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-19144429340591 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19144429340291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9572214670295 + 9572214670296.

It is an arithmetic number, because the mean of its divisors is an integer number (9572214670296).

Almost surely, 2^{19144429340591} is an apocalyptic number.

19144429340591 is a deficient number, since it is larger than the sum of its proper divisors (1).

19144429340591 is an equidigital number, since it uses as much as digits as its factorization.

19144429340591 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5598720, while the sum is 56.

The spelling of 19144429340591 in words is "nineteen trillion, one hundred forty-four billion, four hundred twenty-nine million, three hundred forty thousand, five hundred ninety-one".