43668006912 has 144 divisors (see below), whose sum is σ = 127049160420. Its totient is φ = 14448918528.

The previous prime is 43668006901. The next prime is 43668006923. The reversal of 43668006912 is 21960086634.

It is an interprime number because it is at equal distance from previous prime (43668006901) and next prime (43668006923).

It can be written as a sum of positive squares in 2 ways, for example, as 41069454336 + 2598552576 = 202656^2 + 50976^2 .

It is a tau number, because it is divible by the number of its divisors (144).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2516538 + ... + 2533830.

Almost surely, 2^43668006912 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 43668006912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63524580210).

43668006912 is an abundant number, since it is smaller than the sum of its proper divisors (83381153508).

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

43668006912 is a wasteful number, since it uses less digits than its factorization.

43668006912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17458 (or 17435 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 45.

The spelling of 43668006912 in words is "forty-three billion, six hundred sixty-eight million, six thousand, nine hundred twelve".