28080006443 has 2 divisors, whose sum is σ = 28080006444. Its totient is φ = 28080006442.

The previous prime is 28080006347. The next prime is 28080006457. The reversal of 28080006443 is 34460008082.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28080006443 - 2¹⁶ = 28079940907 is a prime.

It is not a weakly prime, because it can be changed into another prime (28080008443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14040003221 + 14040003222.

It is an arithmetic number, because the mean of its divisors is an integer number (14040003222).

Almost surely, 2^28080006443 is an apocalyptic number.

28080006443 is a deficient number, since it is larger than the sum of its proper divisors (1).

28080006443 is an equidigital number, since it uses as much as digits as its factorization.

28080006443 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36864, while the sum is 35.

The spelling of 28080006443 in words is "twenty-eight billion, eighty million, six thousand, four hundred forty-three".