729365872865 has 8 divisors (see below), whose sum is σ = 1000273197120. Its totient is φ = 500136598512.

The previous prime is 729365872819. The next prime is 729365872903. The reversal of 729365872865 is 568278563927.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-729365872865 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 729365872795 and 729365872804.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10419512435 + ... + 10419512504.

It is an arithmetic number, because the mean of its divisors is an integer number (125034149640).

Almost surely, 2^729365872865 is an apocalyptic number.

It is an amenable number.

729365872865 is a deficient number, since it is larger than the sum of its proper divisors (270907324255).

729365872865 is a wasteful number, since it uses less digits than its factorization.

729365872865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20839024951.

The product of its digits is 304819200, while the sum is 68.

The spelling of 729365872865 in words is "seven hundred twenty-nine billion, three hundred sixty-five million, eight hundred seventy-two thousand, eight hundred sixty-five".