28587116244 has 24 divisors (see below), whose sum is σ = 66745774368. Its totient is φ = 9522966880.

The previous prime is 28587116227. The next prime is 28587116263. The reversal of 28587116244 is 44261178582.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 28587116193 and 28587116202.

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, 739347 + ... + 777050.

It is an arithmetic number, because the mean of its divisors is an integer number (2781073932).

Almost surely, 2^28587116244 is an apocalyptic number.

It is an amenable number.

28587116244 is an abundant number, since it is smaller than the sum of its proper divisors (38158658124).

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

28587116244 is a wasteful number, since it uses less digits than its factorization.

28587116244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1517975 (or 1517973 counting only the distinct ones).

The product of its digits is 860160, while the sum is 48.

The spelling of 28587116244 in words is "twenty-eight billion, five hundred eighty-seven million, one hundred sixteen thousand, two hundred forty-four".