12724021473 has 8 divisors (see below), whose sum is σ = 17018881728. Its totient is φ = 8455921104.

The previous prime is 12724021451. The next prime is 12724021507. The reversal of 12724021473 is 37412042721.

12724021473 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12724021473 - 2³² = 8429054177 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12724021423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6688861 + ... + 6690762.

It is an arithmetic number, because the mean of its divisors is an integer number (2127360216).

Almost surely, 2^12724021473 is an apocalyptic number.

It is an amenable number.

12724021473 is a deficient number, since it is larger than the sum of its proper divisors (4294860255).

12724021473 is a wasteful number, since it uses less digits than its factorization.

12724021473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13379943.

The product of its (nonzero) digits is 18816, while the sum is 33.

The spelling of 12724021473 in words is "twelve billion, seven hundred twenty-four million, twenty-one thousand, four hundred seventy-three".