21743321204471 has 8 divisors (see below), whose sum is σ = 21872408880000. Its totient is φ = 21614479178040.

The previous prime is 21743321204383. The next prime is 21743321204489. The reversal of 21743321204471 is 17440212334712.

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 21743321204471 - 2¹⁸ = 21743320942327 is a prime.

It is a super-3 number, since 3×21743321204471³ (a number of 41 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21743321204771) 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, 61234721 + ... + 61588778.

It is an arithmetic number, because the mean of its divisors is an integer number (2734051110000).

Almost surely, 2^{21743321204471} is an apocalyptic number.

21743321204471 is a deficient number, since it is larger than the sum of its proper divisors (129087675529).

21743321204471 is a wasteful number, since it uses less digits than its factorization.

21743321204471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122824549.

The product of its (nonzero) digits is 225792, while the sum is 41.

The spelling of 21743321204471 in words is "twenty-one trillion, seven hundred forty-three billion, three hundred twenty-one million, two hundred four thousand, four hundred seventy-one".