28055834834 has 12 divisors (see below), whose sum is σ = 44415263214. Its totient is φ = 13289605632.

The previous prime is 28055834803. The next prime is 28055834909. The reversal of 28055834834 is 43843855082.

It can be written as a sum of positive squares in only one way, i.e., 28051225225 + 4609609 = 167485^2 + 2147^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 19428527 + ... + 19429970.

Almost surely, 2^28055834834 is an apocalyptic number.

28055834834 is a deficient number, since it is larger than the sum of its proper divisors (16359428380).

28055834834 is a wasteful number, since it uses less digits than its factorization.

28055834834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38858537 (or 38858518 counting only the distinct ones).

The product of its (nonzero) digits is 3686400, while the sum is 50.

The spelling of 28055834834 in words is "twenty-eight billion, fifty-five million, eight hundred thirty-four thousand, eight hundred thirty-four".