41643240647744 has 112 divisors (see below), whose sum is σ = 87943385728320. Its totient is φ = 19508855961600.

The previous prime is 41643240647717. The next prime is 41643240647753. The reversal of 41643240647744 is 44774604234614.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 41643240647744.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 111207194 + ... + 111581030.

Almost surely, 2^{41643240647744} 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 41643240647744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43971692864160).

41643240647744 is an abundant number, since it is smaller than the sum of its proper divisors (46300145080576).

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

41643240647744 is a wasteful number, since it uses less digits than its factorization.

41643240647744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374876 (or 374866 counting only the distinct ones).

The product of its (nonzero) digits is 43352064, while the sum is 56.

The spelling of 41643240647744 in words is "forty-one trillion, six hundred forty-three billion, two hundred forty million, six hundred forty-seven thousand, seven hundred forty-four".