19036443061 has 2 divisors, whose sum is σ = 19036443062. Its totient is φ = 19036443060.

The previous prime is 19036443053. The next prime is 19036443067. The reversal of 19036443061 is 16034463091.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18970930225 + 65512836 = 137735^2 + 8094^2 .

It is an emirp because it is prime and its reverse (16034463091) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 19036443061 - 2³ = 19036443053 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 19036443061.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19036443067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9518221530 + 9518221531.

It is an arithmetic number, because the mean of its divisors is an integer number (9518221531).

Almost surely, 2^19036443061 is an apocalyptic number.

It is an amenable number.

19036443061 is a deficient number, since it is larger than the sum of its proper divisors (1).

19036443061 is an equidigital number, since it uses as much as digits as its factorization.

19036443061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 46656, while the sum is 37.

The spelling of 19036443061 in words is "nineteen billion, thirty-six million, four hundred forty-three thousand, sixty-one".