728522728276 has 48 divisors (see below), whose sum is σ = 1468220092416. Its totient is φ = 309831139584.

The previous prime is 728522728201. The next prime is 728522728277. The reversal of 728522728276 is 672827225827.

It is a happy number.

It is a super-2 number, since 2×728522728276² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 728522728276.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (728522728277) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10849261 + ... + 10916203.

It is an arithmetic number, because the mean of its divisors is an integer number (30587918592).

Almost surely, 2^728522728276 is an apocalyptic number.

It is an amenable number.

728522728276 is an abundant number, since it is smaller than the sum of its proper divisors (739697364140).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

728522728276 is a wasteful number, since it uses less digits than its factorization.

728522728276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69928 (or 69926 counting only the distinct ones).

The product of its digits is 21073920, while the sum is 58.

The spelling of 728522728276 in words is "seven hundred twenty-eight billion, five hundred twenty-two million, seven hundred twenty-eight thousand, two hundred seventy-six".