728317323104 has 24 divisors (see below), whose sum is σ = 1638713977488. Its totient is φ = 312135995520.

The previous prime is 728317323029. The next prime is 728317323113. The reversal of 728317323104 is 401323713827.

It is a super-2 number, since 2×728317323104² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1625708087 + ... + 1625708534.

It is an arithmetic number, because the mean of its divisors is an integer number (68279749062).

Almost surely, 2^728317323104 is an apocalyptic number.

It is an amenable number.

728317323104 is an abundant number, since it is smaller than the sum of its proper divisors (910396654384).

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

728317323104 is a wasteful number, since it uses less digits than its factorization.

728317323104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3251416638 (or 3251416630 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 41.

The spelling of 728317323104 in words is "seven hundred twenty-eight billion, three hundred seventeen million, three hundred twenty-three thousand, one hundred four".