280375530000 has 100 divisors (see below), whose sum is σ = 905089691088. Its totient is φ = 74766800000.

The previous prime is 280375529983. The next prime is 280375530007. The reversal of 280375530000 is 35573082.

It is a tau number, because it is divible by the number of its divisors (100).

It is a super-2 number, since 2×280375530000² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (280375530007) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 4642926 + ... + 4702925.

Almost surely, 2^280375530000 is an apocalyptic number.

280375530000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

280375530000 is an abundant number, since it is smaller than the sum of its proper divisors (624714161088).

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

280375530000 is an equidigital number, since it uses as much as digits as its factorization.

280375530000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9345882 (or 9345861 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 33.

The spelling of 280375530000 in words is "two hundred eighty billion, three hundred seventy-five million, five hundred thirty thousand".