289001491489 has 2 divisors, whose sum is σ = 289001491490. Its totient is φ = 289001491488.

The previous prime is 289001491453. The next prime is 289001491501. The reversal of 289001491489 is 984194100982.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 282726158400 + 6275333089 = 531720^2 + 79217^2 .

It is a cyclic number.

It is not a de Polignac number, because 289001491489 - 2⁹ = 289001490977 is a prime.

It is not a weakly prime, because it can be changed into another prime (289001491439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 144500745744 + 144500745745.

It is an arithmetic number, because the mean of its divisors is an integer number (144500745745).

Almost surely, 2^289001491489 is an apocalyptic number.

It is an amenable number.

289001491489 is a deficient number, since it is larger than the sum of its proper divisors (1).

289001491489 is an equidigital number, since it uses as much as digits as its factorization.

289001491489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1492992, while the sum is 55.

The spelling of 289001491489 in words is "two hundred eighty-nine billion, one million, four hundred ninety-one thousand, four hundred eighty-nine".