11771805079 has 2 divisors, whose sum is σ = 11771805080. Its totient is φ = 11771805078.

The previous prime is 11771805049. The next prime is 11771805083. The reversal of 11771805079 is 97050817711.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (97050817711) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11771805079 - 2¹⁷ = 11771674007 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11771805049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5885902539 + 5885902540.

It is an arithmetic number, because the mean of its divisors is an integer number (5885902540).

Almost surely, 2^11771805079 is an apocalyptic number.

11771805079 is a deficient number, since it is larger than the sum of its proper divisors (1).

11771805079 is an equidigital number, since it uses as much as digits as its factorization.

11771805079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 123480, while the sum is 46.

The spelling of 11771805079 in words is "eleven billion, seven hundred seventy-one million, eight hundred five thousand, seventy-nine".