729216883681 has 16 divisors (see below), whose sum is σ = 861488429760. Its totient is φ = 608511625920.

The previous prime is 729216883679. The next prime is 729216883727. The reversal of 729216883681 is 186388612927.

It is not a de Polignac number, because 729216883681 - 2¹ = 729216883679 is a prime.

It is a super-2 number, since 2×729216883681² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (720216883681) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14218590 + ... + 14269783.

It is an arithmetic number, because the mean of its divisors is an integer number (53843026860).

Almost surely, 2^729216883681 is an apocalyptic number.

It is an amenable number.

729216883681 is a deficient number, since it is larger than the sum of its proper divisors (132271546079).

729216883681 is a wasteful number, since it uses less digits than its factorization.

729216883681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28488576.

The product of its digits is 13934592, while the sum is 61.

The spelling of 729216883681 in words is "seven hundred twenty-nine billion, two hundred sixteen million, eight hundred eighty-three thousand, six hundred eighty-one".