41981305887 has 40 divisors (see below), whose sum is σ = 65488220160. Its totient is φ = 26750742480.

The previous prime is 41981305867. The next prime is 41981305901. The reversal of 41981305887 is 78850318914.

41981305887 is a `hidden beast` number, since 41 + 9 + 8 + 13 + 0 + 588 + 7 = 666.

It is not a de Polignac number, because 41981305887 - 2⁷ = 41981305759 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41981305867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2732814 + ... + 2748132.

It is an arithmetic number, because the mean of its divisors is an integer number (1637205504).

Almost surely, 2^41981305887 is an apocalyptic number.

41981305887 is a deficient number, since it is larger than the sum of its proper divisors (23506914273).

41981305887 is a wasteful number, since it uses less digits than its factorization.

41981305887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16825 (or 16816 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 54.

The spelling of 41981305887 in words is "forty-one billion, nine hundred eighty-one million, three hundred five thousand, eight hundred eighty-seven".