489686057444 has 6 divisors (see below), whose sum is σ = 856950600534. Its totient is φ = 244843028720.

The previous prime is 489686057389. The next prime is 489686057449. The reversal of 489686057444 is 444750686984.

It can be written as a sum of positive squares in only one way, i.e., 462835302400 + 26850755044 = 680320^2 + 163862^2 .

It is not an unprimeable number, because it can be changed into a prime (489686057449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61210757177 + ... + 61210757184.

It is an arithmetic number, because the mean of its divisors is an integer number (142825100089).

Almost surely, 2^489686057444 is an apocalyptic number.

It is an amenable number.

489686057444 is a deficient number, since it is larger than the sum of its proper divisors (367264543090).

489686057444 is a wasteful number, since it uses less digits than its factorization.

489686057444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122421514365 (or 122421514363 counting only the distinct ones).

The product of its (nonzero) digits is 185794560, while the sum is 65.

The spelling of 489686057444 in words is "four hundred eighty-nine billion, six hundred eighty-six million, fifty-seven thousand, four hundred forty-four".