28730825839 has 2 divisors, whose sum is σ = 28730825840. Its totient is φ = 28730825838.

The previous prime is 28730825833. The next prime is 28730825873. The reversal of 28730825839 is 93852803782.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28730825839 - 2¹¹ = 28730823791 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28730825839.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28730825833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14365412919 + 14365412920.

It is an arithmetic number, because the mean of its divisors is an integer number (14365412920).

Almost surely, 2^28730825839 is an apocalyptic number.

28730825839 is a deficient number, since it is larger than the sum of its proper divisors (1).

28730825839 is an equidigital number, since it uses as much as digits as its factorization.

28730825839 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5806080, while the sum is 55.

The spelling of 28730825839 in words is "twenty-eight billion, seven hundred thirty million, eight hundred twenty-five thousand, eight hundred thirty-nine".