43042559645952 has 576 divisors, whose sum is σ = 132748351814400. Its totient is φ = 13740065095680.

The previous prime is 43042559645951. The next prime is 43042559645977. The reversal of 43042559645952 is 25954695524034.

43042559645952 is a `hidden beast` number, since 4 + 3 + 0 + 42 + 5 + 5 + 96 + 459 + 52 = 666.

It is a tau number, because it is divible by the number of its divisors (576).

It is a self number, because there is not a number n which added to its sum of digits gives 43042559645952.

It is not an unprimeable number, because it can be changed into a prime (43042559645951) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 21596867868 + ... + 21596869860.

Almost surely, 2^{43042559645952} 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 43042559645952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66374175907200).

43042559645952 is an abundant number, since it is smaller than the sum of its proper divisors (89705792168448).

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

43042559645952 is a wasteful number, since it uses less digits than its factorization.

43042559645952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2871 (or 2851 counting only the distinct ones).

The product of its (nonzero) digits is 233280000, while the sum is 63.

The spelling of 43042559645952 in words is "forty-three trillion, forty-two billion, five hundred fifty-nine million, six hundred forty-five thousand, nine hundred fifty-two".