28427563008 has 390 divisors, whose sum is σ = 92251334084. Its totient is φ = 8746942464.

The previous prime is 28427562967. The next prime is 28427563019. The reversal of 28427563008 is 80036572482.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

28427563008 is a `hidden beast` number, since 2 + 8 + 4 + 2 + 7 + 5 + 630 + 0 + 8 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 2186735610 + ... + 2186735622.

Almost surely, 2^28427563008 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28427563008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46125667042).

28427563008 is an abundant number, since it is smaller than the sum of its proper divisors (63823771076).

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

28427563008 is an frugal number, since it uses more digits than its factorization.

28427563008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91 (or 18 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 45.

The spelling of 28427563008 in words is "twenty-eight billion, four hundred twenty-seven million, five hundred sixty-three thousand, eight".