289397122840 has 32 divisors (see below), whose sum is σ = 744164030880. Its totient is φ = 99221870592.

The previous prime is 289397122793. The next prime is 289397122867. The reversal of 289397122840 is 48221793982.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 516780297 + ... + 516780856.

It is an arithmetic number, because the mean of its divisors is an integer number (23255125965).

Almost surely, 2^289397122840 is an apocalyptic number.

289397122840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

289397122840 is an abundant number, since it is smaller than the sum of its proper divisors (454766908040).

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

289397122840 is a wasteful number, since it uses less digits than its factorization.

289397122840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1033561171 (or 1033561167 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 55.

The spelling of 289397122840 in words is "two hundred eighty-nine billion, three hundred ninety-seven million, one hundred twenty-two thousand, eight hundred forty".