289861065088 has 64 divisors (see below), whose sum is σ = 673993152000. Its totient is φ = 121583043072.

The previous prime is 289861065077. The next prime is 289861065107. The reversal of 289861065088 is 880560168982.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

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, 3399438 + ... + 3483661.

It is an arithmetic number, because the mean of its divisors is an integer number (10531143000).

Almost surely, 2^289861065088 is an apocalyptic number.

289861065088 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

289861065088 is an abundant number, since it is smaller than the sum of its proper divisors (384132086912).

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

289861065088 is an equidigital number, since it uses as much as digits as its factorization.

289861065088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6883167 (or 6883155 counting only the distinct ones).

The product of its (nonzero) digits is 13271040, while the sum is 61.

The spelling of 289861065088 in words is "two hundred eighty-nine billion, eight hundred sixty-one million, sixty-five thousand, eighty-eight".