19973569872383 has 2 divisors, whose sum is σ = 19973569872384. Its totient is φ = 19973569872382.

The previous prime is 19973569872359. The next prime is 19973569872409. The reversal of 19973569872383 is 38327896537991.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-19973569872383 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 19973569872298 and 19973569872307.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19973569872353) 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, 9986784936191 + 9986784936192.

It is an arithmetic number, because the mean of its divisors is an integer number (9986784936192).

Almost surely, 2^{19973569872383} is an apocalyptic number.

19973569872383 is a deficient number, since it is larger than the sum of its proper divisors (1).

19973569872383 is an equidigital number, since it uses as much as digits as its factorization.

19973569872383 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3703553280, while the sum is 80.

The spelling of 19973569872383 in words is "nineteen trillion, nine hundred seventy-three billion, five hundred sixty-nine million, eight hundred seventy-two thousand, three hundred eighty-three".