728492104320 has 64 divisors (see below), whose sum is σ = 2322068588640. Its totient is φ = 194264560640.

The previous prime is 728492104289. The next prime is 728492104363. The reversal of 728492104320 is 23401294827.

It is a tau number, because it is divible by the number of its divisors (64).

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 7 ways as a sum of consecutive naturals, for example, 189709566 + ... + 189713405.

Almost surely, 2^728492104320 is an apocalyptic number.

It is an amenable number.

728492104320 is an abundant number, since it is smaller than the sum of its proper divisors (1593576484320).

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

728492104320 is a wasteful number, since it uses less digits than its factorization.

728492104320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379422993 (or 379422981 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 42.

The spelling of 728492104320 in words is "seven hundred twenty-eight billion, four hundred ninety-two million, one hundred four thousand, three hundred twenty".