289131439867 has 2 divisors, whose sum is σ = 289131439868. Its totient is φ = 289131439866.

The previous prime is 289131439813. The next prime is 289131439901. The reversal of 289131439867 is 768934131982.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 289131439867 - 2²⁷ = 288997222139 is a prime.

It is not a weakly prime, because it can be changed into another prime (289131539867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 144565719933 + 144565719934.

It is an arithmetic number, because the mean of its divisors is an integer number (144565719934).

Almost surely, 2^289131439867 is an apocalyptic number.

289131439867 is a deficient number, since it is larger than the sum of its proper divisors (1).

289131439867 is an equidigital number, since it uses as much as digits as its factorization.

289131439867 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15676416, while the sum is 61.

The spelling of 289131439867 in words is "two hundred eighty-nine billion, one hundred thirty-one million, four hundred thirty-nine thousand, eight hundred sixty-seven".