28693425239 has 2 divisors, whose sum is σ = 28693425240. Its totient is φ = 28693425238.

The previous prime is 28693425217. The next prime is 28693425307. The reversal of 28693425239 is 93252439682.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28693425239 - 2¹² = 28693421143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28693425209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14346712619 + 14346712620.

It is an arithmetic number, because the mean of its divisors is an integer number (14346712620).

Almost surely, 2^28693425239 is an apocalyptic number.

28693425239 is a deficient number, since it is larger than the sum of its proper divisors (1).

28693425239 is an equidigital number, since it uses as much as digits as its factorization.

28693425239 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5598720, while the sum is 53.

The spelling of 28693425239 in words is "twenty-eight billion, six hundred ninety-three million, four hundred twenty-five thousand, two hundred thirty-nine".