28081830044 has 48 divisors (see below), whose sum is σ = 50830295040. Its totient is φ = 13565946240.

The previous prime is 28081830031. The next prime is 28081830067. The reversal of 28081830044 is 44003818082.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17473889 + ... + 17475495.

It is an arithmetic number, because the mean of its divisors is an integer number (1058964480).

Almost surely, 2^28081830044 is an apocalyptic number.

It is an amenable number.

28081830044 is a deficient number, since it is larger than the sum of its proper divisors (22748464996).

28081830044 is a wasteful number, since it uses less digits than its factorization.

28081830044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2618 (or 2616 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 38.

The spelling of 28081830044 in words is "twenty-eight billion, eighty-one million, eight hundred thirty thousand, forty-four".