489595726729 has 2 divisors, whose sum is σ = 489595726730. Its totient is φ = 489595726728.

The previous prime is 489595726681. The next prime is 489595726783. The reversal of 489595726729 is 927627595984.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 442593486729 + 47002240000 = 665277^2 + 216800^2 .

It is a cyclic number.

It is not a de Polignac number, because 489595726729 - 2¹³ = 489595718537 is a prime.

It is not a weakly prime, because it can be changed into another prime (489595726799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 244797863364 + 244797863365.

It is an arithmetic number, because the mean of its divisors is an integer number (244797863365).

Almost surely, 2^489595726729 is an apocalyptic number.

It is an amenable number.

489595726729 is a deficient number, since it is larger than the sum of its proper divisors (1).

489595726729 is an equidigital number, since it uses as much as digits as its factorization.

489595726729 is an evil number, because the sum of its binary digits is even.

The product of its digits is 685843200, while the sum is 73.

The spelling of 489595726729 in words is "four hundred eighty-nine billion, five hundred ninety-five million, seven hundred twenty-six thousand, seven hundred twenty-nine".