2104443404521 has 32 divisors (see below), whose sum is σ = 2316395128320. Its totient is φ = 1905565939200.

The previous prime is 2104443404509. The next prime is 2104443404537. The reversal of 2104443404521 is 1254043444012.

It is a cyclic number.

It is not a de Polignac number, because 2104443404521 - 2⁵ = 2104443404489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2104443404321) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8448861 + ... + 8694373.

It is an arithmetic number, because the mean of its divisors is an integer number (72387347760).

Almost surely, 2^{2104443404521} is an apocalyptic number.

It is an amenable number.

2104443404521 is a deficient number, since it is larger than the sum of its proper divisors (211951723799).

2104443404521 is a wasteful number, since it uses less digits than its factorization.

2104443404521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245817.

The product of its (nonzero) digits is 61440, while the sum is 34.

Adding to 2104443404521 its reverse (1254043444012), we get a palindrome (3358486848533).

The spelling of 2104443404521 in words is "two trillion, one hundred four billion, four hundred forty-three million, four hundred four thousand, five hundred twenty-one".