28065690727 has 2 divisors, whose sum is σ = 28065690728. Its totient is φ = 28065690726.

The previous prime is 28065690701. The next prime is 28065690733. The reversal of 28065690727 is 72709656082.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28065690727 - 2¹⁵ = 28065657959 is a prime.

It is a super-2 number, since 2×28065690727² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28065690767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14032845363 + 14032845364.

It is an arithmetic number, because the mean of its divisors is an integer number (14032845364).

Almost surely, 2^28065690727 is an apocalyptic number.

28065690727 is a deficient number, since it is larger than the sum of its proper divisors (1).

28065690727 is an equidigital number, since it uses as much as digits as its factorization.

28065690727 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2540160, while the sum is 52.

The spelling of 28065690727 in words is "twenty-eight billion, sixty-five million, six hundred ninety thousand, seven hundred twenty-seven".