280392880009 has 24 divisors (see below), whose sum is σ = 322095041856. Its totient is φ = 243444933600.

The previous prime is 280392880007. The next prime is 280392880049. The reversal of 280392880009 is 900088293082.

It is not a de Polignac number, because 280392880009 - 2¹ = 280392880007 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (280392880007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1740154 + ... + 1894444.

It is an arithmetic number, because the mean of its divisors is an integer number (13420626744).

Almost surely, 2^280392880009 is an apocalyptic number.

It is an amenable number.

280392880009 is a deficient number, since it is larger than the sum of its proper divisors (41702161847).

280392880009 is a wasteful number, since it uses less digits than its factorization.

280392880009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154989 (or 154978 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 49.

The spelling of 280392880009 in words is "two hundred eighty billion, three hundred ninety-two million, eight hundred eighty thousand, nine".