728630207726 has 8 divisors (see below), whose sum is σ = 1093918552104. Its totient is φ = 363990690360.

The previous prime is 728630207707. The next prime is 728630207731. The reversal of 728630207726 is 627702036827.

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

It is a super-2 number, since 2×728630207726² (a number of 25 digits) contains 22 as substring.

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, 162203945 + ... + 162208436.

It is an arithmetic number, because the mean of its divisors is an integer number (136739819013).

Almost surely, 2^728630207726 is an apocalyptic number.

728630207726 is a deficient number, since it is larger than the sum of its proper divisors (365288344378).

728630207726 is a wasteful number, since it uses less digits than its factorization.

728630207726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324413506.

The product of its (nonzero) digits is 2370816, while the sum is 50.

The spelling of 728630207726 in words is "seven hundred twenty-eight billion, six hundred thirty million, two hundred seven thousand, seven hundred twenty-six".