11587189943617 has 2 divisors, whose sum is σ = 11587189943618. Its totient is φ = 11587189943616.

The previous prime is 11587189943551. The next prime is 11587189943677. The reversal of 11587189943617 is 71634998178511.

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., 10830917953296 + 756271990321 = 3291036^2 + 869639^2 .

It is a cyclic number.

It is not a de Polignac number, because 11587189943617 - 2³⁵ = 11552830205249 is a prime.

It is not a weakly prime, because it can be changed into another prime (11587189943677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5793594971808 + 5793594971809.

It is an arithmetic number, because the mean of its divisors is an integer number (5793594971809).

Almost surely, 2^{11587189943617} is an apocalyptic number.

It is an amenable number.

11587189943617 is a deficient number, since it is larger than the sum of its proper divisors (1).

11587189943617 is an equidigital number, since it uses as much as digits as its factorization.

11587189943617 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 91445760, while the sum is 70.

The spelling of 11587189943617 in words is "eleven trillion, five hundred eighty-seven billion, one hundred eighty-nine million, nine hundred forty-three thousand, six hundred seventeen".