11815680750 has 128 divisors (see below), whose sum is σ = 30866254848. Its totient is φ = 3004848000.

The previous prime is 11815680749. The next prime is 11815680829. The reversal of 11815680750 is 5708651811.

11815680750 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×11815680750² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7261437 + ... + 7263063.

It is an arithmetic number, because the mean of its divisors is an integer number (241142616).

Almost surely, 2^11815680750 is an apocalyptic number.

11815680750 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 11815680750, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15433127424).

11815680750 is an abundant number, since it is smaller than the sum of its proper divisors (19050574098).

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

11815680750 is a wasteful number, since it uses less digits than its factorization.

11815680750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2091 (or 2081 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 42.

The spelling of 11815680750 in words is "eleven billion, eight hundred fifteen million, six hundred eighty thousand, seven hundred fifty".