128173500286 has 32 divisors (see below), whose sum is σ = 216081750528. Its totient is φ = 56577074400.

The previous prime is 128173500283. The next prime is 128173500337. The reversal of 128173500286 is 682005371821.

It is a Smith number, since the sum of its digits (43) 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 not an unprimeable number, because it can be changed into a prime (128173500283) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7171261 + ... + 7189111.

It is an arithmetic number, because the mean of its divisors is an integer number (6752554704).

Almost surely, 2^128173500286 is an apocalyptic number.

128173500286 is a deficient number, since it is larger than the sum of its proper divisors (87908250242).

128173500286 is a wasteful number, since it uses less digits than its factorization.

128173500286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29896.

The product of its (nonzero) digits is 161280, while the sum is 43.

The spelling of 128173500286 in words is "one hundred twenty-eight billion, one hundred seventy-three million, five hundred thousand, two hundred eighty-six".