28563047040 has 256 divisors, whose sum is σ = 100151303040. Its totient is φ = 6923755520.

The previous prime is 28563046973. The next prime is 28563047047. The reversal of 28563047040 is 4074036582.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 28563047040.

It is not an unprimeable number, because it can be changed into a prime (28563047047) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2549932 + ... + 2561108.

Almost surely, 2^28563047040 is an apocalyptic number.

28563047040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28563047040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50075651520).

28563047040 is an abundant number, since it is smaller than the sum of its proper divisors (71588256000).

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

28563047040 is a wasteful number, since it uses less digits than its factorization.

28563047040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11232 (or 11198 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 39.

The spelling of 28563047040 in words is "twenty-eight billion, five hundred sixty-three million, forty-seven thousand, forty".