19223682869 has 2 divisors, whose sum is σ = 19223682870. Its totient is φ = 19223682868.

The previous prime is 19223682851. The next prime is 19223682883. The reversal of 19223682869 is 96828632291.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18056640625 + 1167042244 = 134375^2 + 34162^2 .

It is an emirp because it is prime and its reverse (96828632291) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 19223682869 - 2²⁸ = 18955247413 is a prime.

It is a super-2 number, since 2×19223682869² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19223684869) 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, 9611841434 + 9611841435.

It is an arithmetic number, because the mean of its divisors is an integer number (9611841435).

Almost surely, 2^19223682869 is an apocalyptic number.

It is an amenable number.

19223682869 is a deficient number, since it is larger than the sum of its proper divisors (1).

19223682869 is an equidigital number, since it uses as much as digits as its factorization.

19223682869 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4478976, while the sum is 56.

The spelling of 19223682869 in words is "nineteen billion, two hundred twenty-three million, six hundred eighty-two thousand, eight hundred sixty-nine".