11861850593 has 2 divisors, whose sum is σ = 11861850594. Its totient is φ = 11861850592.

The previous prime is 11861850569. The next prime is 11861850653. The reversal of 11861850593 is 39505816811.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7339691584 + 4522159009 = 85672^2 + 67247^2 .

It is an emirp because it is prime and its reverse (39505816811) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11861850593 - 2⁶ = 11861850529 is a prime.

It is not a weakly prime, because it can be changed into another prime (11861850563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5930925296 + 5930925297.

It is an arithmetic number, because the mean of its divisors is an integer number (5930925297).

Almost surely, 2^11861850593 is an apocalyptic number.

It is an amenable number.

11861850593 is a deficient number, since it is larger than the sum of its proper divisors (1).

11861850593 is an equidigital number, since it uses as much as digits as its factorization.

11861850593 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 259200, while the sum is 47.

The spelling of 11861850593 in words is "eleven billion, eight hundred sixty-one million, eight hundred fifty thousand, five hundred ninety-three".