280995784960 has 432 divisors, whose sum is σ = 799373897280. Its totient is φ = 93594009600.

The previous prime is 280995784919. The next prime is 280995784963. The reversal of 280995784960 is 69487599082.

It is not an unprimeable number, because it can be changed into a prime (280995784963) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 257086174 + ... + 257087266.

It is an arithmetic number, because the mean of its divisors is an integer number (1850402540).

Almost surely, 2^280995784960 is an apocalyptic number.

280995784960 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 280995784960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (399686948640).

280995784960 is an abundant number, since it is smaller than the sum of its proper divisors (518378112320).

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

280995784960 is a wasteful number, since it uses less digits than its factorization.

280995784960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1206 (or 1161 counting only the distinct ones).

The product of its (nonzero) digits is 78382080, while the sum is 67.

The spelling of 280995784960 in words is "two hundred eighty billion, nine hundred ninety-five million, seven hundred eighty-four thousand, nine hundred sixty".