19385910360469 has 2 divisors, whose sum is σ = 19385910360470. Its totient is φ = 19385910360468.

The previous prime is 19385910360463. The next prime is 19385910360491. The reversal of 19385910360469 is 96406301958391.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12001305204100 + 7384605156369 = 3464290^2 + 2717463^2 .

It is a cyclic number.

It is not a de Polignac number, because 19385910360469 - 2¹⁷ = 19385910229397 is a prime.

It is a super-2 number, since 2×19385910360469² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 19385910360469.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19385910360463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9692955180234 + 9692955180235.

It is an arithmetic number, because the mean of its divisors is an integer number (9692955180235).

Almost surely, 2^{19385910360469} is an apocalyptic number.

It is an amenable number.

19385910360469 is a deficient number, since it is larger than the sum of its proper divisors (1).

19385910360469 is an equidigital number, since it uses as much as digits as its factorization.

19385910360469 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 37791360, while the sum is 64.

The spelling of 19385910360469 in words is "nineteen trillion, three hundred eighty-five billion, nine hundred ten million, three hundred sixty thousand, four hundred sixty-nine".