729221089364 has 6 divisors (see below), whose sum is σ = 1276136906394. Its totient is φ = 364610544680.

The previous prime is 729221089361. The next prime is 729221089381. The reversal of 729221089364 is 463980122927.

It can be written as a sum of positive squares in only one way, i.e., 419784776464 + 309436312900 = 647908^2 + 556270^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (729221089361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 91152636167 + ... + 91152636174.

It is an arithmetic number, because the mean of its divisors is an integer number (212689484399).

Almost surely, 2^729221089364 is an apocalyptic number.

It is an amenable number.

729221089364 is a deficient number, since it is larger than the sum of its proper divisors (546915817030).

729221089364 is a wasteful number, since it uses less digits than its factorization.

729221089364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182305272345 (or 182305272343 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 53.

The spelling of 729221089364 in words is "seven hundred twenty-nine billion, two hundred twenty-one million, eighty-nine thousand, three hundred sixty-four".