728674161815 has 16 divisors (see below), whose sum is σ = 905080906080. Its totient is φ = 562514494080.

The previous prime is 728674161799. The next prime is 728674161821. The reversal of 728674161815 is 518161476827.

728674161815 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 728674161815 - 2⁴ = 728674161799 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1190789 + ... + 1695678.

It is an arithmetic number, because the mean of its divisors is an integer number (56567556630).

Almost surely, 2^728674161815 is an apocalyptic number.

728674161815 is a deficient number, since it is larger than the sum of its proper divisors (176406744265).

728674161815 is a wasteful number, since it uses less digits than its factorization.

728674161815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2888242.

The product of its digits is 4515840, while the sum is 56.

The spelling of 728674161815 in words is "seven hundred twenty-eight billion, six hundred seventy-four million, one hundred sixty-one thousand, eight hundred fifteen".