11975964337 has 2 divisors, whose sum is σ = 11975964338. Its totient is φ = 11975964336.

The previous prime is 11975964317. The next prime is 11975964349. The reversal of 11975964337 is 73346957911.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9752747536 + 2223216801 = 98756^2 + 47151^2 .

It is an emirp because it is prime and its reverse (73346957911) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11975964337 - 2¹¹ = 11975962289 is a prime.

It is not a weakly prime, because it can be changed into another prime (11975964317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5987982168 + 5987982169.

It is an arithmetic number, because the mean of its divisors is an integer number (5987982169).

Almost surely, 2^11975964337 is an apocalyptic number.

It is an amenable number.

11975964337 is a deficient number, since it is larger than the sum of its proper divisors (1).

11975964337 is an equidigital number, since it uses as much as digits as its factorization.

11975964337 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4286520, while the sum is 55.

The spelling of 11975964337 in words is "eleven billion, nine hundred seventy-five million, nine hundred sixty-four thousand, three hundred thirty-seven".