729388785788 has 24 divisors (see below), whose sum is σ = 1375048419360. Its totient is φ = 336535404480.

The previous prime is 729388785773. The next prime is 729388785791. The reversal of 729388785788 is 887587883927.

It is a congruent number.

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, 2031923 + ... + 2363786.

It is an arithmetic number, because the mean of its divisors is an integer number (57293684140).

Almost surely, 2^729388785788 is an apocalyptic number.

It is an amenable number.

729388785788 is a deficient number, since it is larger than the sum of its proper divisors (645659633572).

729388785788 is a wasteful number, since it uses less digits than its factorization.

729388785788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4398917 (or 4398915 counting only the distinct ones).

The product of its digits is 3034644480, while the sum is 80.

The spelling of 729388785788 in words is "seven hundred twenty-nine billion, three hundred eighty-eight million, seven hundred eighty-five thousand, seven hundred eighty-eight".