14202009621 has 12 divisors (see below), whose sum is σ = 20795028748. Its totient is φ = 9338307264.

The previous prime is 14202009611. The next prime is 14202009673. The reversal of 14202009621 is 12690020241.

14202009621 is a `hidden beast` number, since 14 + 2 + 0 + 20 + 0 + 9 + 621 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 10285002225 + 3917007396 = 101415^2 + 62586^2 .

It is not a de Polignac number, because 14202009621 - 2⁹ = 14202009109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14202009611) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10807570 + ... + 10808883.

Almost surely, 2^14202009621 is an apocalyptic number.

It is an amenable number.

14202009621 is a deficient number, since it is larger than the sum of its proper divisors (6593019127).

14202009621 is a wasteful number, since it uses less digits than its factorization.

14202009621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21616532 (or 21616529 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

Adding to 14202009621 its reverse (12690020241), we get a palindrome (26892029862).

The spelling of 14202009621 in words is "fourteen billion, two hundred two million, nine thousand, six hundred twenty-one".