28365685759 has 2 divisors, whose sum is σ = 28365685760. Its totient is φ = 28365685758.

The previous prime is 28365685729. The next prime is 28365685783. The reversal of 28365685759 is 95758656382.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28365685759 - 2⁹ = 28365685247 is a prime.

It is a super-2 number, since 2×28365685759² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 28365685759.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28365685729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14182842879 + 14182842880.

It is an arithmetic number, because the mean of its divisors is an integer number (14182842880).

Almost surely, 2^28365685759 is an apocalyptic number.

28365685759 is a deficient number, since it is larger than the sum of its proper divisors (1).

28365685759 is an equidigital number, since it uses as much as digits as its factorization.

28365685759 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108864000, while the sum is 64.

The spelling of 28365685759 in words is "twenty-eight billion, three hundred sixty-five million, six hundred eighty-five thousand, seven hundred fifty-nine".