729357158728 has 32 divisors (see below), whose sum is σ = 1492121736000. Its totient is φ = 331469354560.

The previous prime is 729357158723. The next prime is 729357158731. The reversal of 729357158728 is 827851753927.

It is a self number, because there is not a number n which added to its sum of digits gives 729357158728.

It is not an unprimeable number, because it can be changed into a prime (729357158723) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 187543 + ... + 1222246.

It is an arithmetic number, because the mean of its divisors is an integer number (46628804250).

Almost surely, 2^729357158728 is an apocalyptic number.

It is an amenable number.

729357158728 is an abundant number, since it is smaller than the sum of its proper divisors (762764577272).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

729357158728 is a wasteful number, since it uses less digits than its factorization.

729357158728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1415685 (or 1415681 counting only the distinct ones).

The product of its digits is 59270400, while the sum is 64.

The spelling of 729357158728 in words is "seven hundred twenty-nine billion, three hundred fifty-seven million, one hundred fifty-eight thousand, seven hundred twenty-eight".