280680968673 has 12 divisors (see below), whose sum is σ = 463346361088. Its totient is φ = 160389124920.

The previous prime is 280680968657. The next prime is 280680968681. The reversal of 280680968673 is 376869086082.

It is not a de Polignac number, because 280680968673 - 2⁴ = 280680968657 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63), and also a Moran number because the ratio is a prime number: 4455253471 = 280680968673 / (2 + 8 + 0 + 6 + 8 + 0 + 9 + 6 + 8 + 6 + 7 + 3).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 280680968673.

It is not an unprimeable number, because it can be changed into a prime (280680968653) 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 11 ways as a sum of consecutive naturals, for example, 2227626673 + ... + 2227626798.

Almost surely, 2^280680968673 is an apocalyptic number.

It is an amenable number.

280680968673 is a deficient number, since it is larger than the sum of its proper divisors (182665392415).

280680968673 is a wasteful number, since it uses less digits than its factorization.

280680968673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4455253484 (or 4455253481 counting only the distinct ones).

The product of its (nonzero) digits is 41803776, while the sum is 63.

The spelling of 280680968673 in words is "two hundred eighty billion, six hundred eighty million, nine hundred sixty-eight thousand, six hundred seventy-three".