11530389471493 has 2 divisors, whose sum is σ = 11530389471494. Its totient is φ = 11530389471492.

The previous prime is 11530389471473. The next prime is 11530389471509. The reversal of 11530389471493 is 39417498303511.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7748523602689 + 3781865868804 = 2783617^2 + 1944702^2 .

It is a cyclic number.

It is not a de Polignac number, because 11530389471493 - 2³³ = 11521799536901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11530389471473) 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, 5765194735746 + 5765194735747.

It is an arithmetic number, because the mean of its divisors is an integer number (5765194735747).

Almost surely, 2^{11530389471493} is an apocalyptic number.

It is an amenable number.

11530389471493 is a deficient number, since it is larger than the sum of its proper divisors (1).

11530389471493 is an equidigital number, since it uses as much as digits as its factorization.

11530389471493 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9797760, while the sum is 58.

The spelling of 11530389471493 in words is "eleven trillion, five hundred thirty billion, three hundred eighty-nine million, four hundred seventy-one thousand, four hundred ninety-three".