728573072938 has 8 divisors (see below), whose sum is σ = 1100097090720. Its totient is φ = 361874042700.

The previous prime is 728573072917. The next prime is 728573072939. The reversal of 728573072938 is 839270375827.

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

It is a super-2 number, since 2×728573072938² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (728573072939) 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 3 ways as a sum of consecutive naturals, for example, 1206246508 + ... + 1206247111.

It is an arithmetic number, because the mean of its divisors is an integer number (137512136340).

Almost surely, 2^728573072938 is an apocalyptic number.

728573072938 is a deficient number, since it is larger than the sum of its proper divisors (371524017782).

728573072938 is a wasteful number, since it uses less digits than its factorization.

728573072938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2412493772.

The product of its (nonzero) digits is 35562240, while the sum is 61.

The spelling of 728573072938 in words is "seven hundred twenty-eight billion, five hundred seventy-three million, seventy-two thousand, nine hundred thirty-eight".