280280050500 has 96 divisors (see below), whose sum is σ = 838234470528. Its totient is φ = 72721296000.

The previous prime is 280280050489. The next prime is 280280050709. The reversal of 280280050500 is 5050082082.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2469546 + ... + 2580545.

It is an arithmetic number, because the mean of its divisors is an integer number (8731609068).

Almost surely, 2^280280050500 is an apocalyptic number.

280280050500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

280280050500 is an abundant number, since it is smaller than the sum of its proper divisors (557954420028).

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

280280050500 is a wasteful number, since it uses less digits than its factorization.

280280050500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5050150 (or 5050138 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 30.

The spelling of 280280050500 in words is "two hundred eighty billion, two hundred eighty million, fifty thousand, five hundred".