289989664436 has 12 divisors (see below), whose sum is σ = 507581708928. Its totient is φ = 144966319032.

The previous prime is 289989664379. The next prime is 289989664439. The reversal of 289989664436 is 634466989982.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289989664439) 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 3 ways as a sum of consecutive naturals, for example, 7105406 + ... + 7146101.

It is an arithmetic number, because the mean of its divisors is an integer number (42298475744).

Almost surely, 2^289989664436 is an apocalyptic number.

It is an amenable number.

289989664436 is a deficient number, since it is larger than the sum of its proper divisors (217592044492).

289989664436 is a wasteful number, since it uses less digits than its factorization.

289989664436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14256598 (or 14256596 counting only the distinct ones).

The product of its digits is 967458816, while the sum is 74.

The spelling of 289989664436 in words is "two hundred eighty-nine billion, nine hundred eighty-nine million, six hundred sixty-four thousand, four hundred thirty-six".