729372942873 has 10 divisors (see below), whose sum is σ = 1089557112314. Its totient is φ = 486248628528.

The previous prime is 729372942841. The next prime is 729372942877. The reversal of 729372942873 is 378249273927.

729372942873 is a `hidden beast` number, since 72 + 9 + 3 + 72 + 9 + 428 + 73 = 666.

It can be written as a sum of positive squares in only one way, i.e., 693760723929 + 35612218944 = 832923^2 + 188712^2 .

It is not a de Polignac number, because 729372942873 - 2⁵ = 729372942841 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 729372942873.

It is not an unprimeable number, because it can be changed into a prime (729372942877) 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 9 ways as a sum of consecutive naturals, for example, 4502302036 + ... + 4502302197.

Almost surely, 2^729372942873 is an apocalyptic number.

It is an amenable number.

729372942873 is a deficient number, since it is larger than the sum of its proper divisors (360184169441).

729372942873 is an equidigital number, since it uses as much as digits as its factorization.

729372942873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9004604245 (or 9004604236 counting only the distinct ones).

The product of its digits is 64012032, while the sum is 63.

The spelling of 729372942873 in words is "seven hundred twenty-nine billion, three hundred seventy-two million, nine hundred forty-two thousand, eight hundred seventy-three".