43117823616 has 384 divisors, whose sum is σ = 142326720000. Its totient is φ = 11506360320.

The previous prime is 43117823579. The next prime is 43117823657. The reversal of 43117823616 is 61632871134.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (384).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 16914310 + ... + 16916858.

It is an arithmetic number, because the mean of its divisors is an integer number (370642500).

Almost surely, 2^43117823616 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 43117823616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71163360000).

43117823616 is an abundant number, since it is smaller than the sum of its proper divisors (99208896384).

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

43117823616 is a wasteful number, since it uses less digits than its factorization.

43117823616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2640 (or 2621 counting only the distinct ones).

The product of its digits is 145152, while the sum is 42.

The spelling of 43117823616 in words is "forty-three billion, one hundred seventeen million, eight hundred twenty-three thousand, six hundred sixteen".