492449244689 has 8 divisors (see below), whose sum is σ = 497548763208. Its totient is φ = 487350190080.

The previous prime is 492449244649. The next prime is 492449244691. The reversal of 492449244689 is 986442944294.

It can be written as a sum of positive squares in 4 ways, for example, as 29960840464 + 462488404225 = 173092^2 + 680065^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 492449244689 - 2¹² = 492449240593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (492449244649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2270969 + ... + 2478345.

It is an arithmetic number, because the mean of its divisors is an integer number (62193595401).

Almost surely, 2^492449244689 is an apocalyptic number.

It is an amenable number.

492449244689 is a deficient number, since it is larger than the sum of its proper divisors (5099518519).

492449244689 is a wasteful number, since it uses less digits than its factorization.

492449244689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231955.

The product of its digits is 143327232, while the sum is 65.

The spelling of 492449244689 in words is "four hundred ninety-two billion, four hundred forty-nine million, two hundred forty-four thousand, six hundred eighty-nine".