11365849497589 has 2 divisors, whose sum is σ = 11365849497590. Its totient is φ = 11365849497588.

The previous prime is 11365849497581. The next prime is 11365849497637. The reversal of 11365849497589 is 98579494856311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6206909528689 + 5158939968900 = 2491367^2 + 2271330^2 .

It is a cyclic number.

It is not a de Polignac number, because 11365849497589 - 2³ = 11365849497581 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11365849497581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5682924748794 + 5682924748795.

It is an arithmetic number, because the mean of its divisors is an integer number (5682924748795).

Almost surely, 2^{11365849497589} is an apocalyptic number.

It is an amenable number.

11365849497589 is a deficient number, since it is larger than the sum of its proper divisors (1).

11365849497589 is an equidigital number, since it uses as much as digits as its factorization.

11365849497589 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2351462400, while the sum is 79.

The spelling of 11365849497589 in words is "eleven trillion, three hundred sixty-five billion, eight hundred forty-nine million, four hundred ninety-seven thousand, five hundred eighty-nine".