20344571334473 has 4 divisors (see below), whose sum is σ = 20554309183380. Its totient is φ = 20134833485568.

The previous prime is 20344571334467. The next prime is 20344571334481. The reversal of 20344571334473 is 37443317544302.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 15294137635984 + 5050433698489 = 3910772^2 + 2247317^2 .

It is not a de Polignac number, because 20344571334473 - 2³⁸ = 20069693427529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20344571337473) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104868924308 + ... + 104868924501.

It is an arithmetic number, because the mean of its divisors is an integer number (5138577295845).

Almost surely, 2^{20344571334473} is an apocalyptic number.

It is an amenable number.

20344571334473 is a deficient number, since it is larger than the sum of its proper divisors (209737848907).

20344571334473 is an equidigital number, since it uses as much as digits as its factorization.

20344571334473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209737848906.

The product of its (nonzero) digits is 10160640, while the sum is 50.

Adding to 20344571334473 its reverse (37443317544302), we get a palindrome (57787888878775).

The spelling of 20344571334473 in words is "twenty trillion, three hundred forty-four billion, five hundred seventy-one million, three hundred thirty-four thousand, four hundred seventy-three".