128806045603 has 2 divisors, whose sum is σ = 128806045604. Its totient is φ = 128806045602.

The previous prime is 128806045513. The next prime is 128806045637. The reversal of 128806045603 is 306540608821.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 128806045603 - 2⁹ = 128806045091 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 128806045603.

It is not a weakly prime, because it can be changed into another prime (128806045673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64403022801 + 64403022802.

It is an arithmetic number, because the mean of its divisors is an integer number (64403022802).

Almost surely, 2^128806045603 is an apocalyptic number.

128806045603 is a deficient number, since it is larger than the sum of its proper divisors (1).

128806045603 is an equidigital number, since it uses as much as digits as its factorization.

128806045603 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 276480, while the sum is 43.

The spelling of 128806045603 in words is "one hundred twenty-eight billion, eight hundred six million, forty-five thousand, six hundred three".