43581841445406 has 32 divisors (see below), whose sum is σ = 95123768249088. Its totient is φ = 13201602760640.

The previous prime is 43581841445353. The next prime is 43581841445407. The reversal of 43581841445406 is 60454414818534.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43581841445407) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 125221386 + ... + 125568941.

It is an arithmetic number, because the mean of its divisors is an integer number (2972617757784).

Almost surely, 2^{43581841445406} is an apocalyptic number.

43581841445406 is an abundant number, since it is smaller than the sum of its proper divisors (51541926803682).

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

43581841445406 is a wasteful number, since it uses less digits than its factorization.

43581841445406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250792976.

The product of its (nonzero) digits is 29491200, while the sum is 57.

The spelling of 43581841445406 in words is "forty-three trillion, five hundred eighty-one billion, eight hundred forty-one million, four hundred forty-five thousand, four hundred six".