19239830069 has 2 divisors, whose sum is σ = 19239830070. Its totient is φ = 19239830068.

The previous prime is 19239830047. The next prime is 19239830083. The reversal of 19239830069 is 96003893291.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18459298225 + 780531844 = 135865^2 + 27938^2 .

It is a cyclic number.

It is not a de Polignac number, because 19239830069 - 2³² = 14944862773 is a prime.

It is a super-2 number, since 2×19239830069² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 19239829999 and 19239830026.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19239830039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9619915034 + 9619915035.

It is an arithmetic number, because the mean of its divisors is an integer number (9619915035).

Almost surely, 2^19239830069 is an apocalyptic number.

It is an amenable number.

19239830069 is a deficient number, since it is larger than the sum of its proper divisors (1).

19239830069 is an equidigital number, since it uses as much as digits as its factorization.

19239830069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 629856, while the sum is 50.

The spelling of 19239830069 in words is "nineteen billion, two hundred thirty-nine million, eight hundred thirty thousand, sixty-nine".