12457716330473 has 4 divisors (see below), whose sum is σ = 13190523173460. Its totient is φ = 11724909487488.

The previous prime is 12457716330467. The next prime is 12457716330509. The reversal of 12457716330473 is 37403361775421.

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 3895286427904 + 8562429902569 = 1973648^2 + 2926163^2 .

It is a cyclic number.

It is not a de Polignac number, because 12457716330473 - 2³² = 12453421363177 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 (12457716335473) 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, 366403421468 + ... + 366403421501.

It is an arithmetic number, because the mean of its divisors is an integer number (3297630793365).

Almost surely, 2^{12457716330473} is an apocalyptic number.

It is an amenable number.

12457716330473 is a deficient number, since it is larger than the sum of its proper divisors (732806842987).

12457716330473 is an equidigital number, since it uses as much as digits as its factorization.

12457716330473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 732806842986.

The product of its (nonzero) digits is 8890560, while the sum is 53.

The spelling of 12457716330473 in words is "twelve trillion, four hundred fifty-seven billion, seven hundred sixteen million, three hundred thirty thousand, four hundred seventy-three".