11975964317 has 2 divisors, whose sum is σ = 11975964318. Its totient is φ = 11975964316.

The previous prime is 11975964311. The next prime is 11975964337. The reversal of 11975964317 is 71346957911.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8363834116 + 3612130201 = 91454^2 + 60101^2 .

It is an emirp because it is prime and its reverse (71346957911) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11975964317 - 2³⁰ = 10902222493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11975964311) 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, 5987982158 + 5987982159.

It is an arithmetic number, because the mean of its divisors is an integer number (5987982159).

Almost surely, 2^11975964317 is an apocalyptic number.

It is an amenable number.

11975964317 is a deficient number, since it is larger than the sum of its proper divisors (1).

11975964317 is an equidigital number, since it uses as much as digits as its factorization.

11975964317 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1428840, while the sum is 53.

The spelling of 11975964317 in words is "eleven billion, nine hundred seventy-five million, nine hundred sixty-four thousand, three hundred seventeen".