11286786361 has 2 divisors, whose sum is σ = 11286786362. Its totient is φ = 11286786360.

The previous prime is 11286786359. The next prime is 11286786367. The reversal of 11286786361 is 16368768211.

It is a happy number.

11286786361 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., 8940837136 + 2345949225 = 94556^2 + 48435^2 .

It is a cyclic number.

It is not a de Polignac number, because 11286786361 - 2¹ = 11286786359 is a prime.

Together with 11286786359, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (11286786367) 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, 5643393180 + 5643393181.

It is an arithmetic number, because the mean of its divisors is an integer number (5643393181).

Almost surely, 2^11286786361 is an apocalyptic number.

It is an amenable number.

11286786361 is a deficient number, since it is larger than the sum of its proper divisors (1).

11286786361 is an equidigital number, since it uses as much as digits as its factorization.

11286786361 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 580608, while the sum is 49.

The spelling of 11286786361 in words is "eleven billion, two hundred eighty-six million, seven hundred eighty-six thousand, three hundred sixty-one".