11555384843 has 2 divisors, whose sum is σ = 11555384844. Its totient is φ = 11555384842.

The previous prime is 11555384801. The next prime is 11555384861. The reversal of 11555384843 is 34848355511.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11555384843 - 2¹⁴ = 11555368459 is a prime.

It is not a weakly prime, because it can be changed into another prime (11555384873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5777692421 + 5777692422.

It is an arithmetic number, because the mean of its divisors is an integer number (5777692422).

Almost surely, 2^11555384843 is an apocalyptic number.

11555384843 is a deficient number, since it is larger than the sum of its proper divisors (1).

11555384843 is an equidigital number, since it uses as much as digits as its factorization.

11555384843 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1152000, while the sum is 47.

The spelling of 11555384843 in words is "eleven billion, five hundred fifty-five million, three hundred eighty-four thousand, eight hundred forty-three".