28580316500656 has 20 divisors (see below), whose sum is σ = 55392324510312. Its totient is φ = 14285523078656.

The previous prime is 28580316500587. The next prime is 28580316500663. The reversal of 28580316500656 is 65600561308582.

It is a junction number, because it is equal to n+sod(n) for n = 28580316500597 and 28580316500606.

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, 289647361 + ... + 289746016.

Almost surely, 2^{28580316500656} is an apocalyptic number.

It is an amenable number.

28580316500656 is a deficient number, since it is larger than the sum of its proper divisors (26812008009656).

28580316500656 is a wasteful number, since it uses less digits than its factorization.

28580316500656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 579396468 (or 579396462 counting only the distinct ones).

The product of its (nonzero) digits is 10368000, while the sum is 55.

The spelling of 28580316500656 in words is "twenty-eight trillion, five hundred eighty billion, three hundred sixteen million, five hundred thousand, six hundred fifty-six".