489989170049 has 2 divisors, whose sum is σ = 489989170050. Its totient is φ = 489989170048.

The previous prime is 489989170031. The next prime is 489989170067. The reversal of 489989170049 is 940071989984.

It is a balanced prime because it is at equal distance from previous prime (489989170031) and next prime (489989170067).

It can be written as a sum of positive squares in only one way, i.e., 489804019600 + 185150449 = 699860^2 + 13607^2 .

It is a cyclic number.

It is not a de Polignac number, because 489989170049 - 2¹⁶ = 489989104513 is a prime.

It is not a weakly prime, because it can be changed into another prime (489989170009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 244994585024 + 244994585025.

It is an arithmetic number, because the mean of its divisors is an integer number (244994585025).

Almost surely, 2^489989170049 is an apocalyptic number.

It is an amenable number.

489989170049 is a deficient number, since it is larger than the sum of its proper divisors (1).

489989170049 is an equidigital number, since it uses as much as digits as its factorization.

489989170049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 47029248, while the sum is 68.

The spelling of 489989170049 in words is "four hundred eighty-nine billion, nine hundred eighty-nine million, one hundred seventy thousand, forty-nine".