19873002241 has 2 divisors, whose sum is σ = 19873002242. Its totient is φ = 19873002240.

The previous prime is 19873002229. The next prime is 19873002257. The reversal of 19873002241 is 14220037891.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15152625216 + 4720377025 = 123096^2 + 68705^2 .

It is a cyclic number.

It is not a de Polignac number, because 19873002241 - 2¹³ = 19872994049 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 19873002241.

It is not a weakly prime, because it can be changed into another prime (19873002341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9936501120 + 9936501121.

It is an arithmetic number, because the mean of its divisors is an integer number (9936501121).

Almost surely, 2^19873002241 is an apocalyptic number.

It is an amenable number.

19873002241 is a deficient number, since it is larger than the sum of its proper divisors (1).

19873002241 is an equidigital number, since it uses as much as digits as its factorization.

19873002241 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24192, while the sum is 37.

The spelling of 19873002241 in words is "nineteen billion, eight hundred seventy-three million, two thousand, two hundred forty-one".