41559901812 has 144 divisors (see below), whose sum is σ = 124694187072. Its totient is φ = 11505162240.

The previous prime is 41559901657. The next prime is 41559901813. The reversal of 41559901812 is 21810995514.

41559901812 is a `hidden beast` number, since 4 + 1 + 559 + 90 + 1 + 8 + 1 + 2 = 666.

41559901812 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41559901813) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 457743 + ... + 540969.

Almost surely, 2^41559901812 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 41559901812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62347093536).

41559901812 is an abundant number, since it is smaller than the sum of its proper divisors (83134285260).

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

41559901812 is a wasteful number, since it uses less digits than its factorization.

41559901812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83358 (or 83353 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 45.

The spelling of 41559901812 in words is "forty-one billion, five hundred fifty-nine million, nine hundred one thousand, eight hundred twelve".