728708469758 has 8 divisors (see below), whose sum is σ = 1140587170128. Its totient is φ = 348512746384.

The previous prime is 728708469737. The next prime is 728708469763. The reversal of 728708469758 is 857964807827.

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

It is a junction number, because it is equal to n+sod(n) for n = 728708469691 and 728708469700.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7920744191 + ... + 7920744282.

It is an arithmetic number, because the mean of its divisors is an integer number (142573396266).

Almost surely, 2^728708469758 is an apocalyptic number.

728708469758 is a deficient number, since it is larger than the sum of its proper divisors (411878700370).

728708469758 is a wasteful number, since it uses less digits than its factorization.

728708469758 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15841488498.

The product of its (nonzero) digits is 379330560, while the sum is 71.

The spelling of 728708469758 in words is "seven hundred twenty-eight billion, seven hundred eight million, four hundred sixty-nine thousand, seven hundred fifty-eight".