489677777009 has 2 divisors, whose sum is σ = 489677777010. Its totient is φ = 489677777008.

The previous prime is 489677776937. The next prime is 489677777011. The reversal of 489677777009 is 900777776984.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 463076167009 + 26601610000 = 680497^2 + 163100^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-489677777009 is a prime.

It is a Sophie Germain prime.

Together with 489677777011, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (489677777089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 244838888504 + 244838888505.

It is an arithmetic number, because the mean of its divisors is an integer number (244838888505).

Almost surely, 2^489677777009 is an apocalyptic number.

It is an amenable number.

489677777009 is a deficient number, since it is larger than the sum of its proper divisors (1).

489677777009 is an equidigital number, since it uses as much as digits as its factorization.

489677777009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 261382464, while the sum is 71.

The spelling of 489677777009 in words is "four hundred eighty-nine billion, six hundred seventy-seven million, seven hundred seventy-seven thousand, nine".