492716749409 has 4 divisors (see below), whose sum is σ = 492817534980. Its totient is φ = 492615963840.

The previous prime is 492716749391. The next prime is 492716749439. The reversal of 492716749409 is 904947617294.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 170436865600 + 322279883809 = 412840^2 + 567697^2 .

It is a cyclic number.

It is not a de Polignac number, because 492716749409 - 2⁸ = 492716749153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (492716749439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50385452 + ... + 50395229.

It is an arithmetic number, because the mean of its divisors is an integer number (123204383745).

Almost surely, 2^492716749409 is an apocalyptic number.

It is an amenable number.

492716749409 is a deficient number, since it is larger than the sum of its proper divisors (100785571).

492716749409 is a wasteful number, since it uses less digits than its factorization.

492716749409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100785570.

The product of its (nonzero) digits is 27433728, while the sum is 62.

The spelling of 492716749409 in words is "four hundred ninety-two billion, seven hundred sixteen million, seven hundred forty-nine thousand, four hundred nine".