28516738044 has 24 divisors (see below), whose sum is σ = 66551437008. Its totient is φ = 9503810560.

The previous prime is 28516738007. The next prime is 28516738057. The reversal of 28516738044 is 44083761582.

It is a junction number, because it is equal to n+sod(n) for n = 28516737984 and 28516738002.

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, 153087 + ... + 283670.

It is an arithmetic number, because the mean of its divisors is an integer number (2772976542).

Almost surely, 2^28516738044 is an apocalyptic number.

It is an amenable number.

28516738044 is an abundant number, since it is smaller than the sum of its proper divisors (38034698964).

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

28516738044 is a wasteful number, since it uses less digits than its factorization.

28516738044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442205 (or 442203 counting only the distinct ones).

The product of its (nonzero) digits is 1290240, while the sum is 48.

The spelling of 28516738044 in words is "twenty-eight billion, five hundred sixteen million, seven hundred thirty-eight thousand, forty-four".