28493594287 has 2 divisors, whose sum is σ = 28493594288. Its totient is φ = 28493594286.

The previous prime is 28493594281. The next prime is 28493594299. The reversal of 28493594287 is 78249539482.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28493594287 - 2³¹ = 26346110639 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28493594281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14246797143 + 14246797144.

It is an arithmetic number, because the mean of its divisors is an integer number (14246797144).

Almost surely, 2^28493594287 is an apocalyptic number.

28493594287 is a deficient number, since it is larger than the sum of its proper divisors (1).

28493594287 is an equidigital number, since it uses as much as digits as its factorization.

28493594287 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34836480, while the sum is 61.

The spelling of 28493594287 in words is "twenty-eight billion, four hundred ninety-three million, five hundred ninety-four thousand, two hundred eighty-seven".