28577082148 has 12 divisors (see below), whose sum is σ = 50040986380. Its totient is φ = 14279657472.

The previous prime is 28577082133. The next prime is 28577082151. The reversal of 28577082148 is 84128077582.

It can be written as a sum of positive squares in 2 ways, for example, as 18082718784 + 10494363364 = 134472^2 + 102442^2 .

It is a junction number, because it is equal to n+sod(n) for n = 28577082095 and 28577082104.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2213661 + ... + 2226532.

Almost surely, 2^28577082148 is an apocalyptic number.

It is an amenable number.

28577082148 is a deficient number, since it is larger than the sum of its proper divisors (21463904232).

28577082148 is a wasteful number, since it uses less digits than its factorization.

28577082148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4441806 (or 4441804 counting only the distinct ones).

The product of its (nonzero) digits is 2007040, while the sum is 52.

The spelling of 28577082148 in words is "twenty-eight billion, five hundred seventy-seven million, eighty-two thousand, one hundred forty-eight".