128853987418 has 16 divisors (see below), whose sum is σ = 208156727520. Its totient is φ = 59468791536.

The previous prime is 128853987413. The next prime is 128853987419. The reversal of 128853987418 is 814789358821.

It is a self number, because there is not a number n which added to its sum of digits gives 128853987418.

It is not an unprimeable number, because it can be changed into a prime (128853987413) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 732321 + ... + 891067.

It is an arithmetic number, because the mean of its divisors is an integer number (13009795470).

Almost surely, 2^128853987418 is an apocalyptic number.

128853987418 is a deficient number, since it is larger than the sum of its proper divisors (79302740102).

128853987418 is a wasteful number, since it uses less digits than its factorization.

128853987418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189981.

The product of its digits is 30965760, while the sum is 64.

The spelling of 128853987418 in words is "one hundred twenty-eight billion, eight hundred fifty-three million, nine hundred eighty-seven thousand, four hundred eighteen".