728351230723 has 8 divisors (see below), whose sum is σ = 728881081200. Its totient is φ = 727821470208.

The previous prime is 728351230679. The next prime is 728351230727. The reversal of 728351230723 is 327032153827.

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

It is a cyclic number.

It is not a de Polignac number, because 728351230723 - 2¹³ = 728351222531 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 728351230723.

It is not an unprimeable number, because it can be changed into a prime (728351230727) 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 in 7 ways as a sum of consecutive naturals, for example, 29345943 + ... + 29370751.

It is an arithmetic number, because the mean of its divisors is an integer number (91110135150).

Almost surely, 2^728351230723 is an apocalyptic number.

728351230723 is a deficient number, since it is larger than the sum of its proper divisors (529850477).

728351230723 is a wasteful number, since it uses less digits than its factorization.

728351230723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44981.

The product of its (nonzero) digits is 423360, while the sum is 43.

The spelling of 728351230723 in words is "seven hundred twenty-eight billion, three hundred fifty-one million, two hundred thirty thousand, seven hundred twenty-three".