21434455420441 has 32 divisors (see below), whose sum is σ = 26518790592000. Its totient is φ = 16918985825280.

The previous prime is 21434455420421. The next prime is 21434455420457. The reversal of 21434455420441 is 14402455443412.

It is not a de Polignac number, because 21434455420441 - 2¹⁷ = 21434455289369 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21434455420421) 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, 4947600 + ... + 8206561.

It is an arithmetic number, because the mean of its divisors is an integer number (828712206000).

Almost surely, 2^{21434455420441} is an apocalyptic number.

It is an amenable number.

21434455420441 is a deficient number, since it is larger than the sum of its proper divisors (5084335171559).

21434455420441 is a wasteful number, since it uses less digits than its factorization.

21434455420441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13154569.

The product of its (nonzero) digits is 1228800, while the sum is 43.

The spelling of 21434455420441 in words is "twenty-one trillion, four hundred thirty-four billion, four hundred fifty-five million, four hundred twenty thousand, four hundred forty-one".