28693425307 has 2 divisors, whose sum is σ = 28693425308. Its totient is φ = 28693425306.

The previous prime is 28693425239. The next prime is 28693425353. The reversal of 28693425307 is 70352439682.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28693425307 - 2³¹ = 26545941659 is a prime.

It is not a weakly prime, because it can be changed into another prime (28693425107) 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, 14346712653 + 14346712654.

It is an arithmetic number, because the mean of its divisors is an integer number (14346712654).

Almost surely, 2^28693425307 is an apocalyptic number.

28693425307 is a deficient number, since it is larger than the sum of its proper divisors (1).

28693425307 is an equidigital number, since it uses as much as digits as its factorization.

28693425307 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2177280, while the sum is 49.

The spelling of 28693425307 in words is "twenty-eight billion, six hundred ninety-three million, four hundred twenty-five thousand, three hundred seven".