11684341649 has 2 divisors, whose sum is σ = 11684341650. Its totient is φ = 11684341648.

The previous prime is 11684341633. The next prime is 11684341667. The reversal of 11684341649 is 94614348611.

11684341649 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., 5888260225 + 5796081424 = 76735^2 + 76132^2 .

It is a cyclic number.

It is not a de Polignac number, because 11684341649 - 2⁴ = 11684341633 is a prime.

It is not a weakly prime, because it can be changed into another prime (11684341679) 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, 5842170824 + 5842170825.

It is an arithmetic number, because the mean of its divisors is an integer number (5842170825).

Almost surely, 2^11684341649 is an apocalyptic number.

It is an amenable number.

11684341649 is a deficient number, since it is larger than the sum of its proper divisors (1).

11684341649 is an equidigital number, since it uses as much as digits as its factorization.

11684341649 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 497664, while the sum is 47.

The spelling of 11684341649 in words is "eleven billion, six hundred eighty-four million, three hundred forty-one thousand, six hundred forty-nine".