728107573671 has 10 divisors (see below), whose sum is σ = 1087666869432. Its totient is φ = 485405049060.

The previous prime is 728107573649. The next prime is 728107573691. The reversal of 728107573671 is 176375701827.

728107573671 is a `hidden beast` number, since 7 + 2 + 8 + 1 + 0 + 7 + 573 + 67 + 1 = 666.

It is not a de Polignac number, because 728107573671 - 2⁹ = 728107573159 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (728107573691) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 4494491115 + ... + 4494491276.

Almost surely, 2^728107573671 is an apocalyptic number.

728107573671 is a deficient number, since it is larger than the sum of its proper divisors (359559295761).

728107573671 is an equidigital number, since it uses as much as digits as its factorization.

728107573671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8988982403 (or 8988982394 counting only the distinct ones).

The product of its (nonzero) digits is 3457440, while the sum is 54.

The spelling of 728107573671 in words is "seven hundred twenty-eight billion, one hundred seven million, five hundred seventy-three thousand, six hundred seventy-one".