14854206217 has 4 divisors (see below), whose sum is σ = 14854496580. Its totient is φ = 14853915856.

The previous prime is 14854206193. The next prime is 14854206223. The reversal of 14854206217 is 71260245841.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 71260245841 = 103 ⋅691847047.

It can be written as a sum of positive squares in 2 ways, for example, as 1378711161 + 13475495056 = 37131^2 + 116084^2 .

It is a cyclic number.

It is not a de Polignac number, because 14854206217 - 2⁷ = 14854206089 is a prime.

It is a super-2 number, since 2×14854206217² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 14854206217.

It is not an unprimeable number, because it can be changed into a prime (14854206287) 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, 45742 + ... + 178327.

It is an arithmetic number, because the mean of its divisors is an integer number (3713624145).

Almost surely, 2^14854206217 is an apocalyptic number.

It is an amenable number.

14854206217 is a deficient number, since it is larger than the sum of its proper divisors (290363).

14854206217 is an equidigital number, since it uses as much as digits as its factorization.

14854206217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290362.

The product of its (nonzero) digits is 107520, while the sum is 40.

The spelling of 14854206217 in words is "fourteen billion, eight hundred fifty-four million, two hundred six thousand, two hundred seventeen".