28060640843 has 2 divisors, whose sum is σ = 28060640844. Its totient is φ = 28060640842.

The previous prime is 28060640837. The next prime is 28060640857. The reversal of 28060640843 is 34804606082.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28060640843 - 2¹⁸ = 28060378699 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28060640843.

It is not a weakly prime, because it can be changed into another prime (28060640833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14030320421 + 14030320422.

It is an arithmetic number, because the mean of its divisors is an integer number (14030320422).

Almost surely, 2^28060640843 is an apocalyptic number.

28060640843 is a deficient number, since it is larger than the sum of its proper divisors (1).

28060640843 is an equidigital number, since it uses as much as digits as its factorization.

28060640843 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 221184, while the sum is 41.

The spelling of 28060640843 in words is "twenty-eight billion, sixty million, six hundred forty thousand, eight hundred forty-three".