128355152473 has 2 divisors, whose sum is σ = 128355152474. Its totient is φ = 128355152472.

The previous prime is 128355152417. The next prime is 128355152503. The reversal of 128355152473 is 374251553821.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 80362611289 + 47992541184 = 283483^2 + 219072^2 .

It is a cyclic number.

It is not a de Polignac number, because 128355152473 - 2²⁹ = 127818281561 is a prime.

It is not a weakly prime, because it can be changed into another prime (128355152773) 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, 64177576236 + 64177576237.

It is an arithmetic number, because the mean of its divisors is an integer number (64177576237).

Almost surely, 2^128355152473 is an apocalyptic number.

It is an amenable number.

128355152473 is a deficient number, since it is larger than the sum of its proper divisors (1).

128355152473 is an equidigital number, since it uses as much as digits as its factorization.

128355152473 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1008000, while the sum is 46.

The spelling of 128355152473 in words is "one hundred twenty-eight billion, three hundred fifty-five million, one hundred fifty-two thousand, four hundred seventy-three".