128223466713 has 12 divisors (see below), whose sum is σ = 185220524580. Its totient is φ = 85478226336.

The previous prime is 128223466711. The next prime is 128223466769. The reversal of 128223466713 is 317664322821.

It can be written as a sum of positive squares in 2 ways, for example, as 115819744329 + 12403722384 = 340323^2 + 111372^2 .

It is not a de Polignac number, because 128223466713 - 2¹ = 128223466711 is a prime.

It is not an unprimeable number, because it can be changed into a prime (128223466711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 135078 + ... + 524111.

It is an arithmetic number, because the mean of its divisors is an integer number (15435043715).

Almost surely, 2^128223466713 is an apocalyptic number.

It is an amenable number.

128223466713 is a deficient number, since it is larger than the sum of its proper divisors (56997057867).

128223466713 is a wasteful number, since it uses less digits than its factorization.

128223466713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 680808 (or 680805 counting only the distinct ones).

The product of its digits is 580608, while the sum is 45.

The spelling of 128223466713 in words is "one hundred twenty-eight billion, two hundred twenty-three million, four hundred sixty-six thousand, seven hundred thirteen".