11373734808649 has 2 divisors, whose sum is σ = 11373734808650. Its totient is φ = 11373734808648.

The previous prime is 11373734808593. The next prime is 11373734808721. The reversal of 11373734808649 is 94680843737311.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9679814337600 + 1693920471049 = 3111240^2 + 1301507^2 .

It is a cyclic number.

It is not a de Polignac number, because 11373734808649 - 2⁷ = 11373734808521 is a prime.

It is not a weakly prime, because it can be changed into another prime (11373734808349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5686867404324 + 5686867404325.

It is an arithmetic number, because the mean of its divisors is an integer number (5686867404325).

Almost surely, 2^{11373734808649} is an apocalyptic number.

It is an amenable number.

11373734808649 is a deficient number, since it is larger than the sum of its proper divisors (1).

11373734808649 is an equidigital number, since it uses as much as digits as its factorization.

11373734808649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 73156608, while the sum is 64.

The spelling of 11373734808649 in words is "eleven trillion, three hundred seventy-three billion, seven hundred thirty-four million, eight hundred eight thousand, six hundred forty-nine".