128259295406 has 16 divisors (see below), whose sum is σ = 216649133568. Its totient is φ = 56419044600.

The previous prime is 128259295363. The next prime is 128259295433. The reversal of 128259295406 is 604592952821.

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, 94031060 + ... + 94032423.

It is an arithmetic number, because the mean of its divisors is an integer number (13540570848).

Almost surely, 2^128259295406 is an apocalyptic number.

128259295406 is a deficient number, since it is larger than the sum of its proper divisors (88389838162).

128259295406 is a wasteful number, since it uses less digits than its factorization.

128259295406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188063527.

The product of its (nonzero) digits is 3110400, while the sum is 53.

The spelling of 128259295406 in words is "one hundred twenty-eight billion, two hundred fifty-nine million, two hundred ninety-five thousand, four hundred six".