11918799967 has 2 divisors, whose sum is σ = 11918799968. Its totient is φ = 11918799966.

The previous prime is 11918799947. The next prime is 11918800037. The reversal of 11918799967 is 76999781911.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11918799967 - 2¹⁹ = 11918275679 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11918799947) 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, 5959399983 + 5959399984.

It is an arithmetic number, because the mean of its divisors is an integer number (5959399984).

Almost surely, 2^11918799967 is an apocalyptic number.

11918799967 is a deficient number, since it is larger than the sum of its proper divisors (1).

11918799967 is an equidigital number, since it uses as much as digits as its factorization.

11918799967 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15431472, while the sum is 67.

The spelling of 11918799967 in words is "eleven billion, nine hundred eighteen million, seven hundred ninety-nine thousand, nine hundred sixty-seven".