729365865730 has 8 divisors (see below), whose sum is σ = 1312858558332. Its totient is φ = 291746346288.

The previous prime is 729365865659. The next prime is 729365865757. The reversal of 729365865730 is 37568563927.

It can be written as a sum of positive squares in 2 ways, for example, as 721033644769 + 8332220961 = 849137^2 + 91281^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 36468293277 + ... + 36468293296.

Almost surely, 2^729365865730 is an apocalyptic number.

729365865730 is a deficient number, since it is larger than the sum of its proper divisors (583492692602).

729365865730 is a wasteful number, since it uses less digits than its factorization.

729365865730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72936586580.

The product of its (nonzero) digits is 57153600, while the sum is 61.

The spelling of 729365865730 in words is "seven hundred twenty-nine billion, three hundred sixty-five million, eight hundred sixty-five thousand, seven hundred thirty".