28136160134672 has 40 divisors (see below), whose sum is σ = 57725864908632. Its totient is φ = 13239316428800.

The previous prime is 28136160134653. The next prime is 28136160134713. The reversal of 28136160134672 is 27643106163182.

It can be written as a sum of positive squares in 4 ways, for example, as 13047006340096 + 15089153794576 = 3612064^2 + 3884476^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 28136160134672.

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, 1864979 + ... + 7729842.

Almost surely, 2^{28136160134672} is an apocalyptic number.

It is an amenable number.

28136160134672 is an abundant number, since it is smaller than the sum of its proper divisors (29589704773960).

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

28136160134672 is a wasteful number, since it uses less digits than its factorization.

28136160134672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9605627 (or 9605621 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 50.

The spelling of 28136160134672 in words is "twenty-eight trillion, one hundred thirty-six billion, one hundred sixty million, one hundred thirty-four thousand, six hundred seventy-two".