280030005280 has 48 divisors (see below), whose sum is σ = 661602561984. Its totient is φ = 112006639360.

The previous prime is 280030005263. The next prime is 280030005319. The reversal of 280030005280 is 82500030082.

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 7 ways as a sum of consecutive naturals, for example, 6317595 + ... + 6361765.

It is an arithmetic number, because the mean of its divisors is an integer number (13783386708).

Almost surely, 2^280030005280 is an apocalyptic number.

280030005280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

280030005280 is an abundant number, since it is smaller than the sum of its proper divisors (381572556704).

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

280030005280 is a wasteful number, since it uses less digits than its factorization.

280030005280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83809 (or 83801 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 28.

The spelling of 280030005280 in words is "two hundred eighty billion, thirty million, five thousand, two hundred eighty".