28576244644 has 24 divisors (see below), whose sum is σ = 52650933440. Its totient is φ = 13533420384.

The previous prime is 28576244623. The next prime is 28576244651. The reversal of 28576244644 is 44644267582.

It is a junction number, because it is equal to n+sod(n) for n = 28576244591 and 28576244600.

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, 376657 + ... + 446119.

Almost surely, 2^28576244644 is an apocalyptic number.

It is an amenable number.

28576244644 is a deficient number, since it is larger than the sum of its proper divisors (24074688796).

28576244644 is a wasteful number, since it uses less digits than its factorization.

28576244644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74899 (or 74897 counting only the distinct ones).

The product of its digits is 10321920, while the sum is 52.

The spelling of 28576244644 in words is "twenty-eight billion, five hundred seventy-six million, two hundred forty-four thousand, six hundred forty-four".