11808380508 has 12 divisors (see below), whose sum is σ = 27552887880. Its totient is φ = 3936126832.

The previous prime is 11808380497. The next prime is 11808380539. The reversal of 11808380508 is 80508380811.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 11808380508.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 492015843 + ... + 492015866.

It is an arithmetic number, because the mean of its divisors is an integer number (2296073990).

Almost surely, 2^11808380508 is an apocalyptic number.

It is an amenable number.

11808380508 is an abundant number, since it is smaller than the sum of its proper divisors (15744507372).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11808380508 is a wasteful number, since it uses less digits than its factorization.

11808380508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 984031716 (or 984031714 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 42.

The spelling of 11808380508 in words is "eleven billion, eight hundred eight million, three hundred eighty thousand, five hundred eight".