728207073455 has 16 divisors (see below), whose sum is σ = 879787332000. Its totient is φ = 578607089280.

The previous prime is 728207073437. The next prime is 728207073457. The reversal of 728207073455 is 554370702827.

It is a de Polignac number, because none of the positive numbers 2^k-728207073455 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (728207073457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10685840 + ... + 10753770.

It is an arithmetic number, because the mean of its divisors is an integer number (54986708250).

Almost surely, 2^728207073455 is an apocalyptic number.

728207073455 is a deficient number, since it is larger than the sum of its proper divisors (151580258545).

728207073455 is a wasteful number, since it uses less digits than its factorization.

728207073455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82474.

The product of its (nonzero) digits is 3292800, while the sum is 50.

The spelling of 728207073455 in words is "seven hundred twenty-eight billion, two hundred seven million, seventy-three thousand, four hundred fifty-five".