11758221912 has 64 divisors (see below), whose sum is σ = 30577528800. Its totient is φ = 3763307520.

The previous prime is 11758221857. The next prime is 11758221919. The reversal of 11758221912 is 21912285711.

11758221912 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11758221919) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 79308 + ... + 172644.

Almost surely, 2^11758221912 is an apocalyptic number.

11758221912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11758221912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15288764400).

11758221912 is an abundant number, since it is smaller than the sum of its proper divisors (18819306888).

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

11758221912 is a wasteful number, since it uses less digits than its factorization.

11758221912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93556 (or 93552 counting only the distinct ones).

The product of its digits is 20160, while the sum is 39.

The spelling of 11758221912 in words is "eleven billion, seven hundred fifty-eight million, two hundred twenty-one thousand, nine hundred twelve".