28281610560 has 224 divisors, whose sum is σ = 104305681152. Its totient is φ = 6358302720.

The previous prime is 28281610547. The next prime is 28281610573. The reversal of 28281610560 is 6501618282.

It is an interprime number because it is at equal distance from previous prime (28281610547) and next prime (28281610573).

It is a tau number, because it is divible by the number of its divisors (224).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 375424 + ... + 444416.

Almost surely, 2^28281610560 is an apocalyptic number.

28281610560 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 28281610560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52152840576).

28281610560 is an abundant number, since it is smaller than the sum of its proper divisors (76024070592).

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

28281610560 is a wasteful number, since it uses less digits than its factorization.

28281610560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69081 (or 69071 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 39.

The spelling of 28281610560 in words is "twenty-eight billion, two hundred eighty-one million, six hundred ten thousand, five hundred sixty".