28080865512673 has 2 divisors, whose sum is σ = 28080865512674. Its totient is φ = 28080865512672.

The previous prime is 28080865512619. The next prime is 28080865512737. The reversal of 28080865512673 is 37621556808082.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19082857402449 + 8998008110224 = 4368393^2 + 2999668^2 .

It is a cyclic number.

It is not a de Polignac number, because 28080865512673 - 2¹⁷ = 28080865381601 is a prime.

It is not a weakly prime, because it can be changed into another prime (28080865512373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14040432756336 + 14040432756337.

It is an arithmetic number, because the mean of its divisors is an integer number (14040432756337).

Almost surely, 2^{28080865512673} is an apocalyptic number.

It is an amenable number.

28080865512673 is a deficient number, since it is larger than the sum of its proper divisors (1).

28080865512673 is an equidigital number, since it uses as much as digits as its factorization.

28080865512673 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 38707200, while the sum is 61.

The spelling of 28080865512673 in words is "twenty-eight trillion, eighty billion, eight hundred sixty-five million, five hundred twelve thousand, six hundred seventy-three".