43638296128 has 168 divisors, whose sum is σ = 106639156800. Its totient is φ = 17635709952.

The previous prime is 43638296089. The next prime is 43638296131. The reversal of 43638296128 is 82169283634.

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 23 ways as a sum of consecutive naturals, for example, 3905013 + ... + 3916171.

Almost surely, 2^43638296128 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43638296128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53319578400).

43638296128 is an abundant number, since it is smaller than the sum of its proper divisors (63000860672).

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

43638296128 is a wasteful number, since it uses less digits than its factorization.

43638296128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11257 (or 11240 counting only the distinct ones).

The product of its digits is 2985984, while the sum is 52.

The spelling of 43638296128 in words is "forty-three billion, six hundred thirty-eight million, two hundred ninety-six thousand, one hundred twenty-eight".