11809116287 has 2 divisors, whose sum is σ = 11809116288. Its totient is φ = 11809116286.

The previous prime is 11809116239. The next prime is 11809116313. The reversal of 11809116287 is 78261190811.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11809116287 - 2¹⁴ = 11809099903 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11809166287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5904558143 + 5904558144.

It is an arithmetic number, because the mean of its divisors is an integer number (5904558144).

Almost surely, 2^11809116287 is an apocalyptic number.

11809116287 is a deficient number, since it is larger than the sum of its proper divisors (1).

11809116287 is an equidigital number, since it uses as much as digits as its factorization.

11809116287 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48384, while the sum is 44.

The spelling of 11809116287 in words is "eleven billion, eight hundred nine million, one hundred sixteen thousand, two hundred eighty-seven".