728522728275 has 24 divisors (see below), whose sum is σ = 1204580134080. Its totient is φ = 388516673440.

The previous prime is 728522728201. The next prime is 728522728277. The reversal of 728522728275 is 572827225827.

It is not a de Polignac number, because 728522728275 - 2¹¹ = 728522726227 is a prime.

It is a super-2 number, since 2×728522728275² (a number of 25 digits) contains 22 as substring.

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 23 ways as a sum of consecutive naturals, for example, 679336 + ... + 1385114.

It is an arithmetic number, because the mean of its divisors is an integer number (50190838920).

Almost surely, 2^728522728275 is an apocalyptic number.

728522728275 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

728522728275 is a deficient number, since it is larger than the sum of its proper divisors (476057405805).

728522728275 is a wasteful number, since it uses less digits than its factorization.

728522728275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 719555 (or 719550 counting only the distinct ones).

The product of its digits is 17561600, while the sum is 57.

The spelling of 728522728275 in words is "seven hundred twenty-eight billion, five hundred twenty-two million, seven hundred twenty-eight thousand, two hundred seventy-five".