280864909088 has 48 divisors (see below), whose sum is σ = 554954400000. Its totient is φ = 139924979712.

The previous prime is 280864909081. The next prime is 280864909099. The reversal of 280864909088 is 880909468082.

It is a self number, because there is not a number n which added to its sum of digits gives 280864909088.

It is not an unprimeable number, because it can be changed into a prime (280864909081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10789913 + ... + 10815911.

It is an arithmetic number, because the mean of its divisors is an integer number (11561550000).

Almost surely, 2^280864909088 is an apocalyptic number.

It is an amenable number.

280864909088 is a deficient number, since it is larger than the sum of its proper divisors (274089490912).

280864909088 is a wasteful number, since it uses less digits than its factorization.

280864909088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27217 (or 27209 counting only the distinct ones).

The product of its (nonzero) digits is 15925248, while the sum is 62.

The spelling of 280864909088 in words is "two hundred eighty billion, eight hundred sixty-four million, nine hundred nine thousand, eighty-eight".