728655427671103 has 4 divisors (see below), whose sum is σ = 728655524826480. Its totient is φ = 728655330515728.

The previous prime is 728655427671077. The next prime is 728655427671113. The reversal of 728655427671103 is 301176724556827.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-728655427671103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (728655427671113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36292150 + ... + 52672867.

It is an arithmetic number, because the mean of its divisors is an integer number (182163881206620).

Almost surely, 2^{728655427671103} is an apocalyptic number.

728655427671103 is a deficient number, since it is larger than the sum of its proper divisors (97155377).

728655427671103 is an equidigital number, since it uses as much as digits as its factorization.

728655427671103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97155376.

The product of its (nonzero) digits is 118540800, while the sum is 64.

The spelling of 728655427671103 in words is "seven hundred twenty-eight trillion, six hundred fifty-five billion, four hundred twenty-seven million, six hundred seventy-one thousand, one hundred three".