14507479809 has 27 divisors (see below), whose sum is σ = 21774757537. Its totient is φ = 9665149068.

The previous prime is 14507479751. The next prime is 14507479817. The reversal of 14507479809 is 90897470541.

The square root of 14507479809 is 120447.

It is a perfect power (a square), and thus also a powerful number.

14507479809 is a `hidden beast` number, since 1 + 4 + 507 + 47 + 98 + 0 + 9 = 666.

It is a tau number, because it is divible by the number of its divisors (27).

It is not a de Polignac number, because 14507479809 - 2⁹ = 14507479297 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (14507479009) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 9755464 + ... + 9756950.

Almost surely, 2^14507479809 is an apocalyptic number.

14507479809 is the 120447-th square number.

14507479809 is the 60224-th centered octagonal number.

It is an amenable number.

14507479809 is a deficient number, since it is larger than the sum of its proper divisors (7267277728).

14507479809 is an frugal number, since it uses more digits than its factorization.

14507479809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2998 (or 1490 counting only the distinct ones).

The product of its (nonzero) digits is 2540160, while the sum is 54.

The spelling of 14507479809 in words is "fourteen billion, five hundred seven million, four hundred seventy-nine thousand, eight hundred nine".