21744035106673 has 8 divisors (see below), whose sum is σ = 23734776675456. Its totient is φ = 19755628722000.

The previous prime is 21744035106637. The next prime is 21744035106719. The reversal of 21744035106673 is 37660153044712.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21744035106673 - 2¹⁷ = 21744034975601 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21744035100673) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 583776553 + ... + 583813798.

It is an arithmetic number, because the mean of its divisors is an integer number (2966847084432).

Almost surely, 2^{21744035106673} is an apocalyptic number.

It is an amenable number.

21744035106673 is a deficient number, since it is larger than the sum of its proper divisors (1990741568783).

21744035106673 is a wasteful number, since it uses less digits than its factorization.

21744035106673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1167592055.

The product of its (nonzero) digits is 2540160, while the sum is 49.

The spelling of 21744035106673 in words is "twenty-one trillion, seven hundred forty-four billion, thirty-five million, one hundred six thousand, six hundred seventy-three".