14538656405447 has 4 divisors (see below), whose sum is σ = 15170771901360. Its totient is φ = 13906540909536.

The previous prime is 14538656405281. The next prime is 14538656405473. The reversal of 14538656405447 is 74450465683541.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 14538656405447 - 2⁸ = 14538656405191 is a prime.

It is a super-2 number, since 2×14538656405447² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 14538656405447.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14538656405477) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 316057747922 + ... + 316057747967.

It is an arithmetic number, because the mean of its divisors is an integer number (3792692975340).

Almost surely, 2^{14538656405447} is an apocalyptic number.

14538656405447 is a deficient number, since it is larger than the sum of its proper divisors (632115495913).

14538656405447 is an equidigital number, since it uses as much as digits as its factorization.

14538656405447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 632115495912.

The product of its (nonzero) digits is 193536000, while the sum is 62.

The spelling of 14538656405447 in words is "fourteen trillion, five hundred thirty-eight billion, six hundred fifty-six million, four hundred five thousand, four hundred forty-seven".