289243260560 has 40 divisors (see below), whose sum is σ = 694183831296. Its totient is φ = 111965132160.

The previous prime is 289243260547. The next prime is 289243260623. The reversal of 289243260560 is 65062342982.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58312694 + ... + 58317653.

Almost surely, 2^289243260560 is an apocalyptic number.

289243260560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

289243260560 is an abundant number, since it is smaller than the sum of its proper divisors (404940570736).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

289243260560 is a wasteful number, since it uses less digits than its factorization.

289243260560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116630391 (or 116630385 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 47.

The spelling of 289243260560 in words is "two hundred eighty-nine billion, two hundred forty-three million, two hundred sixty thousand, five hundred sixty".