21444014414 has 8 divisors (see below), whose sum is σ = 32181619680. Its totient is φ = 10716807856.

The previous prime is 21444014399. The next prime is 21444014497. The reversal of 21444014414 is 41441044412.

It is a happy number.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2594519 + ... + 2602770.

It is an arithmetic number, because the mean of its divisors is an integer number (4022702460).

Almost surely, 2^21444014414 is an apocalyptic number.

21444014414 is a deficient number, since it is larger than the sum of its proper divisors (10737605266).

21444014414 is a wasteful number, since it uses less digits than its factorization.

21444014414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5199354.

The product of its (nonzero) digits is 8192, while the sum is 29.

Adding to 21444014414 its reverse (41441044412), we get a palindrome (62885058826).

The spelling of 21444014414 in words is "twenty-one billion, four hundred forty-four million, fourteen thousand, four hundred fourteen".