728814052139 has 2 divisors, whose sum is σ = 728814052140. Its totient is φ = 728814052138.

The previous prime is 728814052133. The next prime is 728814052171. The reversal of 728814052139 is 931250418827.

It is a weak prime.

It is an emirp because it is prime and its reverse (931250418827) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 728814052139 - 2⁴ = 728814052123 is a prime.

It is not a weakly prime, because it can be changed into another prime (728814052133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 364407026069 + 364407026070.

It is an arithmetic number, because the mean of its divisors is an integer number (364407026070).

Almost surely, 2^728814052139 is an apocalyptic number.

728814052139 is a deficient number, since it is larger than the sum of its proper divisors (1).

728814052139 is an equidigital number, since it uses as much as digits as its factorization.

728814052139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 967680, while the sum is 50.

The spelling of 728814052139 in words is "seven hundred twenty-eight billion, eight hundred fourteen million, fifty-two thousand, one hundred thirty-nine".