728858380461 has 16 divisors (see below), whose sum is σ = 984639784128. Its totient is φ = 479532268800.

The previous prime is 728858380441. The next prime is 728858380529. The reversal of 728858380461 is 164083858827.

It is not a de Polignac number, because 728858380461 - 2²⁹ = 728321509549 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 728858380395 and 728858380404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (728858380441) 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 15 ways as a sum of consecutive naturals, for example, 5052076 + ... + 5194341.

It is an arithmetic number, because the mean of its divisors is an integer number (61539986508).

Almost surely, 2^728858380461 is an apocalyptic number.

It is an amenable number.

728858380461 is a deficient number, since it is larger than the sum of its proper divisors (255781403667).

728858380461 is a wasteful number, since it uses less digits than its factorization.

728858380461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10246732.

The product of its (nonzero) digits is 20643840, while the sum is 60.

The spelling of 728858380461 in words is "seven hundred twenty-eight billion, eight hundred fifty-eight million, three hundred eighty thousand, four hundred sixty-one".