14004558538521 has 16 divisors (see below), whose sum is σ = 19336946909760. Its totient is φ = 9010046934720.

The previous prime is 14004558538519. The next prime is 14004558538583. The reversal of 14004558538521 is 12583585540041.

It is not a de Polignac number, because 14004558538521 - 2¹ = 14004558538519 is a prime.

It is a super-2 number, since 2×14004558538521² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (14004558338521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 721949191 + ... + 721968588.

It is an arithmetic number, because the mean of its divisors is an integer number (1208559181860).

Almost surely, 2^{14004558538521} is an apocalyptic number.

It is an amenable number.

14004558538521 is a deficient number, since it is larger than the sum of its proper divisors (5332388371239).

14004558538521 is a wasteful number, since it uses less digits than its factorization.

14004558538521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1443917896.

The product of its (nonzero) digits is 3840000, while the sum is 51.

The spelling of 14004558538521 in words is "fourteen trillion, four billion, five hundred fifty-eight million, five hundred thirty-eight thousand, five hundred twenty-one".