728873525427 has 8 divisors (see below), whose sum is σ = 998097080016. Its totient is φ = 472782827232.

The previous prime is 728873525411. The next prime is 728873525431. The reversal of 728873525427 is 724525378827.

It is a happy number.

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

It is not a de Polignac number, because 728873525427 - 2⁴ = 728873525411 is a prime.

It is not an unprimeable number, because it can be changed into a prime (728873525477) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3283213968 + ... + 3283214189.

It is an arithmetic number, because the mean of its divisors is an integer number (124762135002).

Almost surely, 2^728873525427 is an apocalyptic number.

728873525427 is a deficient number, since it is larger than the sum of its proper divisors (269223554589).

728873525427 is a wasteful number, since it uses less digits than its factorization.

728873525427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6566428197.

The product of its digits is 52684800, while the sum is 60.

The spelling of 728873525427 in words is "seven hundred twenty-eight billion, eight hundred seventy-three million, five hundred twenty-five thousand, four hundred twenty-seven".