728328378587125 has 32 divisors (see below), whose sum is σ = 934871109748992. Its totient is φ = 566094632760000.

The previous prime is 728328378587107. The next prime is 728328378587143. The reversal of 728328378587125 is 521785873823827.

728328378587125 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (728328378587107) and next prime (728328378587143).

It is not a de Polignac number, because 728328378587125 - 2³¹ = 728326231103477 is a prime.

It is a super-3 number, since 3×728328378587125³ (a number of 46 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 110752321 + ... + 117144070.

It is an arithmetic number, because the mean of its divisors is an integer number (29214722179656).

Almost surely, 2^{728328378587125} is an apocalyptic number.

It is an amenable number.

728328378587125 is a deficient number, since it is larger than the sum of its proper divisors (206542731161867).

728328378587125 is a wasteful number, since it uses less digits than its factorization.

728328378587125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227897134 (or 227897124 counting only the distinct ones).

The product of its digits is 2528870400, while the sum is 76.

The spelling of 728328378587125 in words is "seven hundred twenty-eight trillion, three hundred twenty-eight billion, three hundred seventy-eight million, five hundred eighty-seven thousand, one hundred twenty-five".