19223373073 has 2 divisors, whose sum is σ = 19223373074. Its totient is φ = 19223373072.

The previous prime is 19223373047. The next prime is 19223373163. The reversal of 19223373073 is 37037332291.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17739043344 + 1484329729 = 133188^2 + 38527^2 .

It is a cyclic number.

It is not a de Polignac number, because 19223373073 - 2²¹ = 19221275921 is a prime.

It is not a weakly prime, because it can be changed into another prime (19223373023) 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, 9611686536 + 9611686537.

It is an arithmetic number, because the mean of its divisors is an integer number (9611686537).

Almost surely, 2^19223373073 is an apocalyptic number.

It is an amenable number.

19223373073 is a deficient number, since it is larger than the sum of its proper divisors (1).

19223373073 is an equidigital number, since it uses as much as digits as its factorization.

19223373073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 142884, while the sum is 40.

The spelling of 19223373073 in words is "nineteen billion, two hundred twenty-three million, three hundred seventy-three thousand, seventy-three".