12474513217 has 4 divisors (see below), whose sum is σ = 12565568196. Its totient is φ = 12383458240.

The previous prime is 12474513209. The next prime is 12474513223. The reversal of 12474513217 is 71231547421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 71231547421 = 617 ⋅115448213.

It can be written as a sum of positive squares in 2 ways, for example, as 5241180816 + 7233332401 = 72396^2 + 85049^2 .

It is a cyclic number.

It is not a de Polignac number, because 12474513217 - 2³ = 12474513209 is a prime.

It is a super-2 number, since 2×12474513217² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12474513817) 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 3 ways as a sum of consecutive naturals, for example, 45527284 + ... + 45527557.

It is an arithmetic number, because the mean of its divisors is an integer number (3141392049).

Almost surely, 2^12474513217 is an apocalyptic number.

It is an amenable number.

12474513217 is a deficient number, since it is larger than the sum of its proper divisors (91054979).

12474513217 is an equidigital number, since it uses as much as digits as its factorization.

12474513217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91054978.

The product of its digits is 47040, while the sum is 37.

The spelling of 12474513217 in words is "twelve billion, four hundred seventy-four million, five hundred thirteen thousand, two hundred seventeen".