11648437589 has 2 divisors, whose sum is σ = 11648437590. Its totient is φ = 11648437588.

The previous prime is 11648437579. The next prime is 11648437609. The reversal of 11648437589 is 98573484611.

It is a happy number.

11648437589 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9568165489 + 2080272100 = 97817^2 + 45610^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11648437589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11648437579) 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, 5824218794 + 5824218795.

It is an arithmetic number, because the mean of its divisors is an integer number (5824218795).

Almost surely, 2^11648437589 is an apocalyptic number.

It is an amenable number.

11648437589 is a deficient number, since it is larger than the sum of its proper divisors (1).

11648437589 is an equidigital number, since it uses as much as digits as its factorization.

11648437589 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5806080, while the sum is 56.

The spelling of 11648437589 in words is "eleven billion, six hundred forty-eight million, four hundred thirty-seven thousand, five hundred eighty-nine".