21200044614 has 16 divisors (see below), whose sum is σ = 48457244928. Its totient is φ = 6057155592.

The previous prime is 21200044603. The next prime is 21200044631. The reversal of 21200044614 is 41644000212.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 252381442 + ... + 252381525.

It is an arithmetic number, because the mean of its divisors is an integer number (3028577808).

Almost surely, 2^21200044614 is an apocalyptic number.

21200044614 is an abundant number, since it is smaller than the sum of its proper divisors (27257200314).

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

21200044614 is a wasteful number, since it uses less digits than its factorization.

21200044614 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 504762979.

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 21200044614 its reverse (41644000212), we get a palindrome (62844044826).

The spelling of 21200044614 in words is "twenty-one billion, two hundred million, forty-four thousand, six hundred fourteen".