128493459564 has 24 divisors (see below), whose sum is σ = 299978712768. Its totient is φ = 42808204560.

The previous prime is 128493459547. The next prime is 128493459587. The reversal of 128493459564 is 465954394821.

It is a junction number, because it is equal to n+sod(n) for n = 128493459498 and 128493459507.

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, 2845242 + ... + 2890049.

It is an arithmetic number, because the mean of its divisors is an integer number (12499113032).

Almost surely, 2^128493459564 is an apocalyptic number.

It is an amenable number.

128493459564 is an abundant number, since it is smaller than the sum of its proper divisors (171485253204).

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

128493459564 is a wasteful number, since it uses less digits than its factorization.

128493459564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5737165 (or 5737163 counting only the distinct ones).

The product of its digits is 37324800, while the sum is 60.

The spelling of 128493459564 in words is "one hundred twenty-eight billion, four hundred ninety-three million, four hundred fifty-nine thousand, five hundred sixty-four".