128485044318 has 16 divisors (see below), whose sum is σ = 257051266560. Its totient is φ = 42814818456.

The previous prime is 128485044239. The next prime is 128485044361. The reversal of 128485044318 is 813440584821.

It is a happy number.

It is a super-2 number, since 2×128485044318² (a number of 23 digits) contains 22 as substring.

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, 3361828 + ... + 3399831.

It is an arithmetic number, because the mean of its divisors is an integer number (16065704160).

Almost surely, 2^128485044318 is an apocalyptic number.

128485044318 is an abundant number, since it is smaller than the sum of its proper divisors (128566222242).

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

128485044318 is a wasteful number, since it uses less digits than its factorization.

128485044318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6764831.

The product of its (nonzero) digits is 983040, while the sum is 48.

The spelling of 128485044318 in words is "one hundred twenty-eight billion, four hundred eighty-five million, forty-four thousand, three hundred eighteen".