19425873473 has 2 divisors, whose sum is σ = 19425873474. Its totient is φ = 19425873472.

The previous prime is 19425873469. The next prime is 19425873631. The reversal of 19425873473 is 37437852491.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16467818929 + 2958054544 = 128327^2 + 54388^2 .

It is a cyclic number.

It is not a de Polignac number, because 19425873473 - 2² = 19425873469 is a prime.

It is not a weakly prime, because it can be changed into another prime (19425873413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9712936736 + 9712936737.

It is an arithmetic number, because the mean of its divisors is an integer number (9712936737).

Almost surely, 2^19425873473 is an apocalyptic number.

It is an amenable number.

19425873473 is a deficient number, since it is larger than the sum of its proper divisors (1).

19425873473 is an equidigital number, since it uses as much as digits as its factorization.

19425873473 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5080320, while the sum is 53.

The spelling of 19425873473 in words is "nineteen billion, four hundred twenty-five million, eight hundred seventy-three thousand, four hundred seventy-three".