11787909041 has 2 divisors, whose sum is σ = 11787909042. Its totient is φ = 11787909040.

The previous prime is 11787909019. The next prime is 11787909137. The reversal of 11787909041 is 14090978711.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11648669041 + 139240000 = 107929^2 + 11800^2 .

It is a cyclic number.

It is not a de Polignac number, because 11787909041 - 2¹⁰ = 11787908017 is a prime.

It is not a weakly prime, because it can be changed into another prime (11787909941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5893954520 + 5893954521.

It is an arithmetic number, because the mean of its divisors is an integer number (5893954521).

Almost surely, 2^11787909041 is an apocalyptic number.

It is an amenable number.

11787909041 is a deficient number, since it is larger than the sum of its proper divisors (1).

11787909041 is an equidigital number, since it uses as much as digits as its factorization.

11787909041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 127008, while the sum is 47.

The spelling of 11787909041 in words is "eleven billion, seven hundred eighty-seven million, nine hundred nine thousand, forty-one".