16028728873 has 2 divisors, whose sum is σ = 16028728874. Its totient is φ = 16028728872.

The previous prime is 16028728841. The next prime is 16028728913. The reversal of 16028728873 is 37882782061.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14364741609 + 1663987264 = 119853^2 + 40792^2 .

It is a cyclic number.

It is not a de Polignac number, because 16028728873 - 2⁵ = 16028728841 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16028728873.

It is not a weakly prime, because it can be changed into another prime (16028728673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8014364436 + 8014364437.

It is an arithmetic number, because the mean of its divisors is an integer number (8014364437).

Almost surely, 2^16028728873 is an apocalyptic number.

It is an amenable number.

16028728873 is a deficient number, since it is larger than the sum of its proper divisors (1).

16028728873 is an equidigital number, since it uses as much as digits as its factorization.

16028728873 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1806336, while the sum is 52.

The spelling of 16028728873 in words is "sixteen billion, twenty-eight million, seven hundred twenty-eight thousand, eight hundred seventy-three".