289739888580891 has 64 divisors (see below), whose sum is σ = 449521387520000. Its totient is φ = 162570400911360.

The previous prime is 289739888580841. The next prime is 289739888580937. The reversal of 289739888580891 is 198085888937982.

It is not a de Polignac number, because 289739888580891 - 2⁷ = 289739888580763 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 289739888580795 and 289739888580804.

It is not an unprimeable number, because it can be changed into a prime (289739888580811) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1739083005 + ... + 1739249601.

It is an arithmetic number, because the mean of its divisors is an integer number (7023771680000).

Almost surely, 2^{289739888580891} is an apocalyptic number.

289739888580891 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

289739888580891 is a deficient number, since it is larger than the sum of its proper divisors (159781498939109).

289739888580891 is a wasteful number, since it uses less digits than its factorization.

289739888580891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169004.

The product of its (nonzero) digits is 40131624960, while the sum is 93.

The spelling of 289739888580891 in words is "two hundred eighty-nine trillion, seven hundred thirty-nine billion, eight hundred eighty-eight million, five hundred eighty thousand, eight hundred ninety-one".