728840851201 has 4 divisors (see below), whose sum is σ = 728928958212. Its totient is φ = 728752744192.

The previous prime is 728840851159. The next prime is 728840851237. The reversal of 728840851201 is 102158048827.

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

It can be written as a sum of positive squares in 2 ways, for example, as 649724663025 + 79116188176 = 806055^2 + 281276^2 .

It is a cyclic number.

It is not a de Polignac number, because 728840851201 - 2²³ = 728832462593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (728840051201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44041096 + ... + 44057641.

It is an arithmetic number, because the mean of its divisors is an integer number (182232239553).

Almost surely, 2^728840851201 is an apocalyptic number.

It is an amenable number.

728840851201 is a deficient number, since it is larger than the sum of its proper divisors (88107011).

728840851201 is an equidigital number, since it uses as much as digits as its factorization.

728840851201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88107010.

The product of its (nonzero) digits is 286720, while the sum is 46.

The spelling of 728840851201 in words is "seven hundred twenty-eight billion, eight hundred forty million, eight hundred fifty-one thousand, two hundred one".