12465404473 has 4 divisors (see below), whose sum is σ = 12669755428. Its totient is φ = 12261053520.

The previous prime is 12465404459. The next prime is 12465404509. The reversal of 12465404473 is 37440456421.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2467804329 + 9997600144 = 49677^2 + 99988^2 .

It is a cyclic number.

It is not a de Polignac number, because 12465404473 - 2⁹ = 12465403961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12465434473) 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 3 ways as a sum of consecutive naturals, for example, 102175386 + ... + 102175507.

It is an arithmetic number, because the mean of its divisors is an integer number (3167438857).

Almost surely, 2^12465404473 is an apocalyptic number.

It is an amenable number.

12465404473 is a deficient number, since it is larger than the sum of its proper divisors (204350955).

12465404473 is an equidigital number, since it uses as much as digits as its factorization.

12465404473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204350954.

The product of its (nonzero) digits is 322560, while the sum is 40.

The spelling of 12465404473 in words is "twelve billion, four hundred sixty-five million, four hundred four thousand, four hundred seventy-three".