19294535089 has 2 divisors, whose sum is σ = 19294535090. Its totient is φ = 19294535088.

The previous prime is 19294535083. The next prime is 19294535111. The reversal of 19294535089 is 98053549291.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14367618225 + 4926916864 = 119865^2 + 70192^2 .

It is a cyclic number.

It is not a de Polignac number, because 19294535089 - 2⁹ = 19294534577 is a prime.

It is not a weakly prime, because it can be changed into another prime (19294535083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9647267544 + 9647267545.

It is an arithmetic number, because the mean of its divisors is an integer number (9647267545).

Almost surely, 2^19294535089 is an apocalyptic number.

It is an amenable number.

19294535089 is a deficient number, since it is larger than the sum of its proper divisors (1).

19294535089 is an equidigital number, since it uses as much as digits as its factorization.

19294535089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3499200, while the sum is 55.

The spelling of 19294535089 in words is "nineteen billion, two hundred ninety-four million, five hundred thirty-five thousand, eighty-nine".