494238124972089 has 45 divisors (see below), whose sum is σ = 747333874834239. Its totient is φ = 325511361296640.

The previous prime is 494238124972079. The next prime is 494238124972171. The reversal of 494238124972089 is 980279421832494.

It is a happy number.

The square root of 494238124972089 is 22231467.

It is a perfect power (a square), and thus also a powerful number.

494238124972089 is a `hidden beast` number, since 4 + 9 + 4 + 2 + 38 + 1 + 2 + 497 + 20 + 89 = 666.

It can be written as a sum of positive squares in only one way, i.e., 76529551045689 + 417708573926400 = 8748117^2 + 20437920^2 .

It is not a de Polignac number, because 494238124972089 - 2⁴³ = 485442031949881 is a prime.

It is not an unprimeable number, because it can be changed into a prime (494238124972079) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 16606890969 + ... + 16606920729.

Almost surely, 2^{494238124972089} is an apocalyptic number.

494238124972089 is the 22231467-th square number.

494238124972089 is the 11115734-th centered octagonal number.

It is an amenable number.

494238124972089 is a deficient number, since it is larger than the sum of its proper divisors (253095749862150).

494238124972089 is an frugal number, since it uses more digits than its factorization.

494238124972089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59700 (or 29847 counting only the distinct ones).

The product of its (nonzero) digits is 501645312, while the sum is 72.

The spelling of 494238124972089 in words is "four hundred ninety-four trillion, two hundred thirty-eight billion, one hundred twenty-four million, nine hundred seventy-two thousand, eighty-nine".