289684917668 has 24 divisors (see below), whose sum is σ = 531067958400. Its totient is φ = 138077660448.

The previous prime is 289684917667. The next prime is 289684917701. The reversal of 289684917668 is 866719486982.

It is a junction number, because it is equal to n+sod(n) for n = 289684917595 and 289684917604.

It is not an unprimeable number, because it can be changed into a prime (289684917661) 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, 15796430 + ... + 15814757.

It is an arithmetic number, because the mean of its divisors is an integer number (22127831600).

Almost surely, 2^289684917668 is an apocalyptic number.

It is an amenable number.

289684917668 is a deficient number, since it is larger than the sum of its proper divisors (241383040732).

289684917668 is a wasteful number, since it uses less digits than its factorization.

289684917668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31611299 (or 31611297 counting only the distinct ones).

The product of its digits is 501645312, while the sum is 74.

The spelling of 289684917668 in words is "two hundred eighty-nine billion, six hundred eighty-four million, nine hundred seventeen thousand, six hundred sixty-eight".