1081722238559 has 2 divisors, whose sum is σ = 1081722238560. Its totient is φ = 1081722238558.

The previous prime is 1081722238537. The next prime is 1081722238631. The reversal of 1081722238559 is 9558322271801.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1081722238559 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1081722238559.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1081722238159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 540861119279 + 540861119280.

It is an arithmetic number, because the mean of its divisors is an integer number (540861119280).

Almost surely, 2^{1081722238559} is an apocalyptic number.

1081722238559 is a deficient number, since it is larger than the sum of its proper divisors (1).

1081722238559 is an equidigital number, since it uses as much as digits as its factorization.

1081722238559 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2419200, while the sum is 53.

The spelling of 1081722238559 in words is "one trillion, eighty-one billion, seven hundred twenty-two million, two hundred thirty-eight thousand, five hundred fifty-nine".