14006500821 has 24 divisors (see below), whose sum is σ = 21784800960. Its totient is φ = 8639431296.

The previous prime is 14006500819. The next prime is 14006500847. The reversal of 14006500821 is 12800560041.

14006500821 is a `hidden beast` number, since 1 + 4 + 0 + 0 + 650 + 0 + 8 + 2 + 1 = 666.

It is not a de Polignac number, because 14006500821 - 2¹ = 14006500819 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14006500621) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 766785 + ... + 784838.

It is an arithmetic number, because the mean of its divisors is an integer number (907700040).

Almost surely, 2^14006500821 is an apocalyptic number.

It is an amenable number.

14006500821 is a deficient number, since it is larger than the sum of its proper divisors (7778300139).

14006500821 is a wasteful number, since it uses less digits than its factorization.

14006500821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1551705 (or 1551702 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The spelling of 14006500821 in words is "fourteen billion, six million, five hundred thousand, eight hundred twenty-one".