21744050446105 has 32 divisors (see below), whose sum is σ = 28166785920000. Its totient is φ = 16019007628032.

The previous prime is 21744050446051. The next prime is 21744050446177. The reversal of 21744050446105 is 50164405044712.

It is a cyclic number.

It is not a de Polignac number, because 21744050446105 - 2¹³ = 21744050437913 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 88067487 + ... + 88314043.

It is an arithmetic number, because the mean of its divisors is an integer number (880212060000).

Almost surely, 2^{21744050446105} is an apocalyptic number.

It is an amenable number.

21744050446105 is a deficient number, since it is larger than the sum of its proper divisors (6422735473895).

21744050446105 is a wasteful number, since it uses less digits than its factorization.

21744050446105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249793.

The product of its (nonzero) digits is 537600, while the sum is 43.

The spelling of 21744050446105 in words is "twenty-one trillion, seven hundred forty-four billion, fifty million, four hundred forty-six thousand, one hundred five".