21441514440534 has 8 divisors (see below), whose sum is σ = 42883028881080. Its totient is φ = 7147171480176.

The previous prime is 21441514440523. The next prime is 21441514440581. The reversal of 21441514440534 is 43504441514412.

It is a sphenic number, since it is the product of 3 distinct primes.

21441514440534 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1786792870039 + ... + 1786792870050.

It is an arithmetic number, because the mean of its divisors is an integer number (5360378610135).

Almost surely, 2^{21441514440534} is an apocalyptic number.

21441514440534 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21441514440534 is a wasteful number, since it uses less digits than its factorization.

21441514440534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3573585740094.

The product of its (nonzero) digits is 614400, while the sum is 42.

Adding to 21441514440534 its reverse (43504441514412), we get a palindrome (64945955954946).

The spelling of 21441514440534 in words is "twenty-one trillion, four hundred forty-one billion, five hundred fourteen million, four hundred forty thousand, five hundred thirty-four".