11943380736 has 540 divisors, whose sum is σ = 42870627072. Its totient is φ = 3186376704.

The previous prime is 11943380723. The next prime is 11943380783. The reversal of 11943380736 is 63708334911.

It is a junction number, because it is equal to n+sod(n) for n = 11943380691 and 11943380700.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 94042305 + ... + 94042431.

Almost surely, 2^11943380736 is an apocalyptic number.

11943380736 is a gapful number since it is divisible by the number (16) 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 11943380736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21435313536).

11943380736 is an abundant number, since it is smaller than the sum of its proper divisors (30927246336).

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

11943380736 is an equidigital number, since it uses as much as digits as its factorization.

11943380736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194 (or 156 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 45.

The spelling of 11943380736 in words is "eleven billion, nine hundred forty-three million, three hundred eighty thousand, seven hundred thirty-six".