11808688481 has 2 divisors, whose sum is σ = 11808688482. Its totient is φ = 11808688480.

The previous prime is 11808688471. The next prime is 11808688487. The reversal of 11808688481 is 18488680811.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6390403600 + 5418284881 = 79940^2 + 73609^2 .

It is a cyclic number.

It is not a de Polignac number, because 11808688481 - 2¹⁴ = 11808672097 is a prime.

It is a super-2 number, since 2×11808688481² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (11808688487) 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, 5904344240 + 5904344241.

It is an arithmetic number, because the mean of its divisors is an integer number (5904344241).

Almost surely, 2^11808688481 is an apocalyptic number.

It is an amenable number.

11808688481 is a deficient number, since it is larger than the sum of its proper divisors (1).

11808688481 is an equidigital number, since it uses as much as digits as its factorization.

11808688481 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 786432, while the sum is 53.

The spelling of 11808688481 in words is "eleven billion, eight hundred eight million, six hundred eighty-eight thousand, four hundred eighty-one".