128964804393 has 8 divisors (see below), whose sum is σ = 171954989056. Its totient is φ = 85975578000.

The previous prime is 128964804389. The next prime is 128964804413. The reversal of 128964804393 is 393408469821.

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

It is not a de Polignac number, because 128964804393 - 2² = 128964804389 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (128964804313) 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, 178863 + ... + 538443.

It is an arithmetic number, because the mean of its divisors is an integer number (21494373632).

Almost surely, 2^128964804393 is an apocalyptic number.

It is an amenable number.

128964804393 is a deficient number, since it is larger than the sum of its proper divisors (42990184663).

128964804393 is a wasteful number, since it uses less digits than its factorization.

128964804393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 479135.

The product of its (nonzero) digits is 8957952, while the sum is 57.

The spelling of 128964804393 in words is "one hundred twenty-eight billion, nine hundred sixty-four million, eight hundred four thousand, three hundred ninety-three".