128285056344 has 32 divisors (see below), whose sum is σ = 331058211840. Its totient is φ = 41382276000.

The previous prime is 128285056297. The next prime is 128285056369. The reversal of 128285056344 is 443650582821.

It is a super-3 number, since 3×128285056344³ (a number of 34 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 128285056293 and 128285056302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86212332 + ... + 86213819.

It is an arithmetic number, because the mean of its divisors is an integer number (10345569120).

Almost surely, 2^128285056344 is an apocalyptic number.

It is an amenable number.

128285056344 is an abundant number, since it is smaller than the sum of its proper divisors (202773155496).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

128285056344 is a wasteful number, since it uses less digits than its factorization.

128285056344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172426191 (or 172426187 counting only the distinct ones).

The product of its (nonzero) digits is 1843200, while the sum is 48.

The spelling of 128285056344 in words is "one hundred twenty-eight billion, two hundred eighty-five million, fifty-six thousand, three hundred forty-four".