11722542589 has 2 divisors, whose sum is σ = 11722542590. Its totient is φ = 11722542588.

The previous prime is 11722542583. The next prime is 11722542631. The reversal of 11722542589 is 98524522711.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6144992100 + 5577550489 = 78390^2 + 74683^2 .

It is an emirp because it is prime and its reverse (98524522711) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11722542589 - 2¹¹ = 11722540541 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11722542583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5861271294 + 5861271295.

It is an arithmetic number, because the mean of its divisors is an integer number (5861271295).

Almost surely, 2^11722542589 is an apocalyptic number.

It is an amenable number.

11722542589 is a deficient number, since it is larger than the sum of its proper divisors (1).

11722542589 is an equidigital number, since it uses as much as digits as its factorization.

11722542589 is an evil number, because the sum of its binary digits is even.

The product of its digits is 403200, while the sum is 46.

The spelling of 11722542589 in words is "eleven billion, seven hundred twenty-two million, five hundred forty-two thousand, five hundred eighty-nine".