11809088974768 has 20 divisors (see below), whose sum is σ = 24084326199160. Its totient is φ = 5593778987904.

The previous prime is 11809088974741. The next prime is 11809088974769. The reversal of 11809088974768 is 86747988090811.

It is a Harshad number since it is a multiple of its sum of digits (76).

It is a junction number, because it is equal to n+sod(n) for n = 11809088974694 and 11809088974703.

It is not an unprimeable number, because it can be changed into a prime (11809088974769) 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 in 3 ways as a sum of consecutive naturals, for example, 19422843405 + ... + 19422844012.

It is an arithmetic number, because the mean of its divisors is an integer number (1204216309958).

Almost surely, 2^{11809088974768} is an apocalyptic number.

It is an amenable number.

11809088974768 is an abundant number, since it is smaller than the sum of its proper divisors (12275237224392).

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

11809088974768 is a wasteful number, since it uses less digits than its factorization.

11809088974768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38845687444 (or 38845687438 counting only the distinct ones).

The product of its (nonzero) digits is 390168576, while the sum is 76.

The spelling of 11809088974768 in words is "eleven trillion, eight hundred nine billion, eighty-eight million, nine hundred seventy-four thousand, seven hundred sixty-eight".