28556495656480 has 48 divisors (see below), whose sum is σ = 73597877446464. Its totient is φ = 10384180238080.

The previous prime is 28556495656459. The next prime is 28556495656487. The reversal of 28556495656480 is 8465659465582.

It is a super-3 number, since 3×28556495656480³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (28556495656487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8112639052 + ... + 8112642571.

It is an arithmetic number, because the mean of its divisors is an integer number (1533289113468).

Almost surely, 2^{28556495656480} is an apocalyptic number.

28556495656480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28556495656480 is an abundant number, since it is smaller than the sum of its proper divisors (45041381789984).

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

28556495656480 is a wasteful number, since it uses less digits than its factorization.

28556495656480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16225281649 (or 16225281641 counting only the distinct ones).

The product of its (nonzero) digits is 2488320000, while the sum is 73.

The spelling of 28556495656480 in words is "twenty-eight trillion, five hundred fifty-six billion, four hundred ninety-five million, six hundred fifty-six thousand, four hundred eighty".