21441426546341 has 4 divisors (see below), whose sum is σ = 21441465240492. Its totient is φ = 21441387852192.

The previous prime is 21441426546317. The next prime is 21441426546347. The reversal of 21441426546341 is 14364562414412.

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 11064304953025 + 10377121593316 = 3326305^2 + 3221354^2 .

It is a cyclic number.

It is not a de Polignac number, because 21441426546341 - 2⁴² = 17043380035237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21441426546347) 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, 18503630 + ... + 19628223.

It is an arithmetic number, because the mean of its divisors is an integer number (5360366310123).

Almost surely, 2^{21441426546341} is an apocalyptic number.

It is an amenable number.

21441426546341 is a deficient number, since it is larger than the sum of its proper divisors (38694151).

21441426546341 is an equidigital number, since it uses as much as digits as its factorization.

21441426546341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38694150.

The product of its digits is 2211840, while the sum is 47.

The spelling of 21441426546341 in words is "twenty-one trillion, four hundred forty-one billion, four hundred twenty-six million, five hundred forty-six thousand, three hundred forty-one".