128633305418 has 8 divisors (see below), whose sum is σ = 193815205248. Its totient is φ = 64028237004.

The previous prime is 128633305403. The next prime is 128633305421. The reversal of 128633305418 is 814503336821.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 144207296 + ... + 144208187.

It is an arithmetic number, because the mean of its divisors is an integer number (24226900656).

Almost surely, 2^128633305418 is an apocalyptic number.

128633305418 is a deficient number, since it is larger than the sum of its proper divisors (65181899830).

128633305418 is a wasteful number, since it uses less digits than its factorization.

128633305418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288415708.

The product of its (nonzero) digits is 414720, while the sum is 44.

The spelling of 128633305418 in words is "one hundred twenty-eight billion, six hundred thirty-three million, three hundred five thousand, four hundred eighteen".