21414644641411 has 8 divisors (see below), whose sum is σ = 24479110206720. Its totient is φ = 18351486730248.

The previous prime is 21414644641343. The next prime is 21414644641417. The reversal of 21414644641411 is 11414644641412.

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

It is not a de Polignac number, because 21414644641411 - 2³³ = 21406054706819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21414644641417) 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, 326878441 + ... + 326943946.

It is an arithmetic number, because the mean of its divisors is an integer number (3059888775840).

Almost surely, 2^{21414644641411} is an apocalyptic number.

21414644641411 is a deficient number, since it is larger than the sum of its proper divisors (3064465565309).

21414644641411 is an equidigital number, since it uses as much as digits as its factorization.

21414644641411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 653827073.

The product of its digits is 294912, while the sum is 43.

Subtracting from 21414644641411 its reverse (11414644641412), we obtain a palindrome (9999999999999).

The spelling of 21414644641411 in words is "twenty-one trillion, four hundred fourteen billion, six hundred forty-four million, six hundred forty-one thousand, four hundred eleven".