289645926369 has 8 divisors (see below), whose sum is σ = 386208279072. Its totient is φ = 193090428960.

The previous prime is 289645926347. The next prime is 289645926389. The reversal of 289645926369 is 963629546982.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 289645926369 - 2⁵ = 289645926337 is a prime.

It is a super-2 number, since 2×289645926369² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (289645926389) 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 7 ways as a sum of consecutive naturals, for example, 1614412 + ... + 1784829.

It is an arithmetic number, because the mean of its divisors is an integer number (48276034884).

Almost surely, 2^289645926369 is an apocalyptic number.

It is an amenable number.

289645926369 is a deficient number, since it is larger than the sum of its proper divisors (96562352703).

289645926369 is a wasteful number, since it uses less digits than its factorization.

289645926369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3427647.

The product of its digits is 302330880, while the sum is 69.

The spelling of 289645926369 in words is "two hundred eighty-nine billion, six hundred forty-five million, nine hundred twenty-six thousand, three hundred sixty-nine".