728018427845 has 8 divisors (see below), whose sum is σ = 878502684960. Its totient is φ = 579161027920.

The previous prime is 728018427827. The next prime is 728018427881. The reversal of 728018427845 is 548724810827.

It is a happy number.

728018427845 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 728018427845 - 2⁸ = 728018427589 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 406713311 + ... + 406715100.

It is an arithmetic number, because the mean of its divisors is an integer number (109812835620).

Almost surely, 2^728018427845 is an apocalyptic number.

It is an amenable number.

728018427845 is a deficient number, since it is larger than the sum of its proper divisors (150484257115).

728018427845 is a wasteful number, since it uses less digits than its factorization.

728018427845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 813428595.

The product of its (nonzero) digits is 8028160, while the sum is 56.

The spelling of 728018427845 in words is "seven hundred twenty-eight billion, eighteen million, four hundred twenty-seven thousand, eight hundred forty-five".