128306725211 has 8 divisors (see below), whose sum is σ = 148006690560. Its totient is φ = 108949368168.

The previous prime is 128306725193. The next prime is 128306725213. The reversal of 128306725211 is 112527603821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 128306725211 - 2¹⁸ = 128306463067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (128306725213) 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 7 ways as a sum of consecutive naturals, for example, 85651271 + ... + 85652768.

It is an arithmetic number, because the mean of its divisors is an integer number (18500836320).

Almost surely, 2^128306725211 is an apocalyptic number.

128306725211 is a deficient number, since it is larger than the sum of its proper divisors (19699965349).

128306725211 is a wasteful number, since it uses less digits than its factorization.

128306725211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171304153.

The product of its (nonzero) digits is 40320, while the sum is 38.

The spelling of 128306725211 in words is "one hundred twenty-eight billion, three hundred six million, seven hundred twenty-five thousand, two hundred eleven".