492709936489 has 9 divisors (see below), whose sum is σ = 509138996349. Its totient is φ = 476795009580.

The previous prime is 492709936487. The next prime is 492709936493. The reversal of 492709936489 is 984639907294.

The square root of 492709936489 is 701933.

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

It is not a de Polignac number, because 492709936489 - 2¹ = 492709936487 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (492709936487) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 21748602 + ... + 21771244.

Almost surely, 2^492709936489 is an apocalyptic number.

492709936489 is the 701933-rd square number.

492709936489 is the 350967-th centered octagonal number.

It is an amenable number.

492709936489 is a deficient number, since it is larger than the sum of its proper divisors (16429059860).

492709936489 is an frugal number, since it uses more digits than its factorization.

492709936489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45348 (or 22674 counting only the distinct ones).

The product of its (nonzero) digits is 211631616, while the sum is 70.

The spelling of 492709936489 in words is "four hundred ninety-two billion, seven hundred nine million, nine hundred thirty-six thousand, four hundred eighty-nine".