43343439648 has 192 divisors, whose sum is σ = 120804929280. Its totient is φ = 13579517952.

The previous prime is 43343439647. The next prime is 43343439661. The reversal of 43343439648 is 84693434334.

It is a self number, because there is not a number n which added to its sum of digits gives 43343439648.

It is not an unprimeable number, because it can be changed into a prime (43343439647) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33624988 + ... + 33626276.

It is an arithmetic number, because the mean of its divisors is an integer number (629192340).

Almost surely, 2^43343439648 is an apocalyptic number.

43343439648 is a gapful number since it is divisible by the number (48) 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 43343439648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60402464640).

43343439648 is an abundant number, since it is smaller than the sum of its proper divisors (77461489632).

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

43343439648 is a wasteful number, since it uses less digits than its factorization.

43343439648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1579 (or 1571 counting only the distinct ones).

The product of its digits is 8957952, while the sum is 51.

The spelling of 43343439648 in words is "forty-three billion, three hundred forty-three million, four hundred thirty-nine thousand, six hundred forty-eight".