19503828089 has 2 divisors, whose sum is σ = 19503828090. Its totient is φ = 19503828088.

The previous prime is 19503828083. The next prime is 19503828131. The reversal of 19503828089 is 98082830591.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14764194064 + 4739634025 = 121508^2 + 68845^2 .

It is a cyclic number.

It is not a de Polignac number, because 19503828089 - 2²⁴ = 19487050873 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 19503828089.

It is not a weakly prime, because it can be changed into another prime (19503828083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9751914044 + 9751914045.

It is an arithmetic number, because the mean of its divisors is an integer number (9751914045).

Almost surely, 2^19503828089 is an apocalyptic number.

It is an amenable number.

19503828089 is a deficient number, since it is larger than the sum of its proper divisors (1).

19503828089 is an equidigital number, since it uses as much as digits as its factorization.

19503828089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1244160, while the sum is 53.

The spelling of 19503828089 in words is "nineteen billion, five hundred three million, eight hundred twenty-eight thousand, eighty-nine".