728725527827 has 4 divisors (see below), whose sum is σ = 794973303096. Its totient is φ = 662477752560.

The previous prime is 728725527799. The next prime is 728725527851.

728725527827 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 728725527827 - 2⁶ = 728725527763 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 728725527827.

It is not an unprimeable number, because it can be changed into a prime (728725520827) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33123887618 + ... + 33123887639.

It is an arithmetic number, because the mean of its divisors is an integer number (198743325774).

Almost surely, 2^728725527827 is an apocalyptic number.

728725527827 is a deficient number, since it is larger than the sum of its proper divisors (66247775269).

728725527827 is a wasteful number, since it uses less digits than its factorization.

728725527827 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66247775268.

The product of its digits is 61465600, while the sum is 62.

The spelling of 728725527827 in words is "seven hundred twenty-eight billion, seven hundred twenty-five million, five hundred twenty-seven thousand, eight hundred twenty-seven".