11684345856 has 48 divisors (see below), whose sum is σ = 31150665000. Its totient is φ = 3894779904.

The previous prime is 11684345843. The next prime is 11684345867. The reversal of 11684345856 is 65854348611.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is a junction number, because it is equal to n+sod(n) for n = 11684345799 and 11684345808.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 944731 + ... + 957018.

Almost surely, 2^11684345856 is an apocalyptic number.

11684345856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

11684345856 is an abundant number, since it is smaller than the sum of its proper divisors (19466319144).

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

11684345856 is an equidigital number, since it uses as much as digits as its factorization.

11684345856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1901774 (or 1901754 counting only the distinct ones).

The product of its digits is 2764800, while the sum is 51.

The spelling of 11684345856 in words is "eleven billion, six hundred eighty-four million, three hundred forty-five thousand, eight hundred fifty-six".