21424804550841 has 8 divisors (see below), whose sum is σ = 28566430212960. Its totient is φ = 14283190961312.

The previous prime is 21424804550833. The next prime is 21424804550861. The reversal of 21424804550841 is 14805540842412.

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 21424804550841 - 2³ = 21424804550833 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21424804550801) 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, 2635870 + ... + 7056728.

It is an arithmetic number, because the mean of its divisors is an integer number (3570803776620).

Almost surely, 2^{21424804550841} is an apocalyptic number.

It is an amenable number.

21424804550841 is a deficient number, since it is larger than the sum of its proper divisors (7141625662119).

21424804550841 is a wasteful number, since it uses less digits than its factorization.

21424804550841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6036295.

The product of its (nonzero) digits is 1638400, while the sum is 48.

The spelling of 21424804550841 in words is "twenty-one trillion, four hundred twenty-four billion, eight hundred four million, five hundred fifty thousand, eight hundred forty-one".