28516834242 has 40 divisors (see below), whose sum is σ = 68814132156. Its totient is φ = 8774409888.

The previous prime is 28516834237. The next prime is 28516834253. The reversal of 28516834242 is 24243861582.

It can be written as a sum of positive squares in 2 ways, for example, as 28049885361 + 466948881 = 167481^2 + 21609^2 .

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 19 ways as a sum of consecutive naturals, for example, 6768273 + ... + 6772484.

Almost surely, 2^28516834242 is an apocalyptic number.

28516834242 is an abundant number, since it is smaller than the sum of its proper divisors (40297297914).

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

28516834242 is a wasteful number, since it uses less digits than its factorization.

28516834242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13540784 (or 13540775 counting only the distinct ones).

The product of its digits is 737280, while the sum is 45.

The spelling of 28516834242 in words is "twenty-eight billion, five hundred sixteen million, eight hundred thirty-four thousand, two hundred forty-two".