28680088134 has 16 divisors (see below), whose sum is σ = 57365305920. Its totient is φ = 9559174440.

The previous prime is 28680088111. The next prime is 28680088141. The reversal of 28680088134 is 43188008682.

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, 139044 + ... + 276935.

It is an arithmetic number, because the mean of its divisors is an integer number (3585331620).

Almost surely, 2^28680088134 is an apocalyptic number.

28680088134 is an abundant number, since it is smaller than the sum of its proper divisors (28685217786).

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

28680088134 is a wasteful number, since it uses less digits than its factorization.

28680088134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427475.

The product of its (nonzero) digits is 589824, while the sum is 48.

The spelling of 28680088134 in words is "twenty-eight billion, six hundred eighty million, eighty-eight thousand, one hundred thirty-four".