729479977216 has 27 divisors (see below), whose sum is σ = 1456137701473. Its totient is φ = 364733155840.

The previous prime is 729479977201. The next prime is 729479977223. The reversal of 729479977216 is 612779974927.

The square root of 729479977216 is 854096.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 98154383616 + 631325593600 = 313296^2 + 794560^2 .

It is a super-2 number, since 2×729479977216² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

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, 13638846 + ... + 13692226.

Almost surely, 2^729479977216 is an apocalyptic number.

729479977216 is the 854096-th square number.

It is an amenable number.

729479977216 is a deficient number, since it is larger than the sum of its proper divisors (726657724257).

729479977216 is an frugal number, since it uses more digits than its factorization.

729479977216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106778 (or 53383 counting only the distinct ones).

The product of its digits is 168031584, while the sum is 70.

The spelling of 729479977216 in words is "seven hundred twenty-nine billion, four hundred seventy-nine million, nine hundred seventy-seven thousand, two hundred sixteen".