729074010722 has 6 divisors (see below), whose sum is σ = 1093612827393. Its totient is φ = 364536401592.

The previous prime is 729074010719. The next prime is 729074010733. The reversal of 729074010722 is 227010470927.

It can be written as a sum of positive squares in 2 ways, for example, as 709285680481 + 19788330241 = 842191^2 + 140671^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=603769.

It is a super-2 number, since 2×729074010722² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 729074010722.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 905654 + ... + 1509422.

Almost surely, 2^729074010722 is an apocalyptic number.

729074010722 is a deficient number, since it is larger than the sum of its proper divisors (364538816671).

729074010722 is an frugal number, since it uses more digits than its factorization.

729074010722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1207540 (or 603771 counting only the distinct ones).

The product of its (nonzero) digits is 98784, while the sum is 41.

The spelling of 729074010722 in words is "seven hundred twenty-nine billion, seventy-four million, ten thousand, seven hundred twenty-two".