728238740756 has 12 divisors (see below), whose sum is σ = 1289772228192. Its totient is φ = 359732389848.

The previous prime is 728238740741. The next prime is 728238740833. The reversal of 728238740756 is 657047832827.

It is a junction number, because it is equal to n+sod(n) for n = 728238740695 and 728238740704.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1096744760 + ... + 1096745423.

It is an arithmetic number, because the mean of its divisors is an integer number (107481019016).

Almost surely, 2^728238740756 is an apocalyptic number.

It is an amenable number.

728238740756 is a deficient number, since it is larger than the sum of its proper divisors (561533487436).

728238740756 is a wasteful number, since it uses less digits than its factorization.

728238740756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2193490270 (or 2193490268 counting only the distinct ones).

The product of its (nonzero) digits is 31610880, while the sum is 59.

The spelling of 728238740756 in words is "seven hundred twenty-eight billion, two hundred thirty-eight million, seven hundred forty thousand, seven hundred fifty-six".