128610858935 has 16 divisors (see below), whose sum is σ = 171566250240. Its totient is φ = 91910488320.

The previous prime is 128610858919. The next prime is 128610858947. The reversal of 128610858935 is 539858016821.

It is not a de Polignac number, because 128610858935 - 2⁴ = 128610858919 is a prime.

It is a Smith number, since the sum of its digits (56) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31911350 + ... + 31915379.

It is an arithmetic number, because the mean of its divisors is an integer number (10722890640).

Almost surely, 2^128610858935 is an apocalyptic number.

128610858935 is a deficient number, since it is larger than the sum of its proper divisors (42955391305).

128610858935 is a wasteful number, since it uses less digits than its factorization.

128610858935 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63826778.

The product of its (nonzero) digits is 4147200, while the sum is 56.

The spelling of 128610858935 in words is "one hundred twenty-eight billion, six hundred ten million, eight hundred fifty-eight thousand, nine hundred thirty-five".