289506068849 has 2 divisors, whose sum is σ = 289506068850. Its totient is φ = 289506068848.

The previous prime is 289506068837. The next prime is 289506068909. The reversal of 289506068849 is 948860605982.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 172883818849 + 116622250000 = 415793^2 + 341500^2 .

It is a cyclic number.

It is not a de Polignac number, because 289506068849 - 2⁴ = 289506068833 is a prime.

It is not a weakly prime, because it can be changed into another prime (289506068249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 144753034424 + 144753034425.

It is an arithmetic number, because the mean of its divisors is an integer number (144753034425).

Almost surely, 2^289506068849 is an apocalyptic number.

It is an amenable number.

289506068849 is a deficient number, since it is larger than the sum of its proper divisors (1).

289506068849 is an equidigital number, since it uses as much as digits as its factorization.

289506068849 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 59719680, while the sum is 65.

The spelling of 289506068849 in words is "two hundred eighty-nine billion, five hundred six million, sixty-eight thousand, eight hundred forty-nine".