28004425488 has 400 divisors, whose sum is σ = 90834936192. Its totient is φ = 8273664000.

The previous prime is 28004425483. The next prime is 28004425517. The reversal of 28004425488 is 88452440082.

28004425488 is a `hidden beast` number, since 2 + 80 + 0 + 442 + 54 + 88 = 666.

It is not an unprimeable number, because it can be changed into a prime (28004425483) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 49044243 + ... + 49044813.

Almost surely, 2^28004425488 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 28004425488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45417468096).

28004425488 is an abundant number, since it is smaller than the sum of its proper divisors (62830510704).

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

28004425488 is a wasteful number, since it uses less digits than its factorization.

28004425488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 716 (or 701 counting only the distinct ones).

The product of its (nonzero) digits is 655360, while the sum is 45.

The spelling of 28004425488 in words is "twenty-eight billion, four million, four hundred twenty-five thousand, four hundred eighty-eight".