489809011 has 2 divisors, whose sum is σ = 489809012. Its totient is φ = 489809010.

The previous prime is 489809003. The next prime is 489809027. The reversal of 489809011 is 110908984.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 489809011 - 2³ = 489809003 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (489809611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 244904505 + 244904506.

It is an arithmetic number, because the mean of its divisors is an integer number (244904506).

Almost surely, 2^489809011 is an apocalyptic number.

489809011 is a deficient number, since it is larger than the sum of its proper divisors (1).

489809011 is an equidigital number, since it uses as much as digits as its factorization.

489809011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 40.

The square root of 489809011 is about 22131.6291989542. The cubic root of 489809011 is about 788.2710739727.

The spelling of 489809011 in words is "four hundred eighty-nine million, eight hundred nine thousand, eleven".