12443773608 has 128 divisors (see below), whose sum is σ = 39888076800. Its totient is φ = 3520801728.

The previous prime is 12443773583. The next prime is 12443773673. The reversal of 12443773608 is 80637734421.

12443773608 is a `hidden beast` number, since 1 + 2 + 4 + 4 + 37 + 7 + 3 + 608 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 115785 + ... + 195687.

It is an arithmetic number, because the mean of its divisors is an integer number (311625600).

Almost surely, 2^12443773608 is an apocalyptic number.

12443773608 is a gapful number since it is divisible by the number (18) 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 12443773608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19944038400).

12443773608 is an abundant number, since it is smaller than the sum of its proper divisors (27444303192).

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

12443773608 is a wasteful number, since it uses less digits than its factorization.

12443773608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80028 (or 80018 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 45.

The spelling of 12443773608 in words is "twelve billion, four hundred forty-three million, seven hundred seventy-three thousand, six hundred eight".