128559844157 has 8 divisors (see below), whose sum is σ = 132799978752. Its totient is φ = 124325524800.

The previous prime is 128559844139. The next prime is 128559844177. The reversal of 128559844157 is 751448955821.

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

It is not a de Polignac number, because 128559844157 - 2⁸ = 128559843901 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 128559844096 and 128559844105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128559844177) 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, 1408844 + ... + 1497317.

It is an arithmetic number, because the mean of its divisors is an integer number (16599997344).

Almost surely, 2^128559844157 is an apocalyptic number.

It is an amenable number.

128559844157 is a deficient number, since it is larger than the sum of its proper divisors (4240134595).

128559844157 is a wasteful number, since it uses less digits than its factorization.

128559844157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2907619.

The product of its digits is 16128000, while the sum is 59.

The spelling of 128559844157 in words is "one hundred twenty-eight billion, five hundred fifty-nine million, eight hundred forty-four thousand, one hundred fifty-seven".