28129764580168 has 128 divisors (see below), whose sum is σ = 58581796147200. Its totient is φ = 12603117542400.

The previous prime is 28129764580147. The next prime is 28129764580241. The reversal of 28129764580168 is 86108546792182.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 170183083 + ... + 170348293.

It is an arithmetic number, because the mean of its divisors is an integer number (457670282400).

Almost surely, 2^{28129764580168} is an apocalyptic number.

It is an amenable number.

28129764580168 is an abundant number, since it is smaller than the sum of its proper divisors (30452031567032).

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

28129764580168 is a wasteful number, since it uses less digits than its factorization.

28129764580168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165803 (or 165799 counting only the distinct ones).

The product of its (nonzero) digits is 92897280, while the sum is 67.

The spelling of 28129764580168 in words is "twenty-eight trillion, one hundred twenty-nine billion, seven hundred sixty-four million, five hundred eighty thousand, one hundred sixty-eight".