492656609197 has 4 divisors (see below), whose sum is σ = 521636409756. Its totient is φ = 463676808640.

The previous prime is 492656609177. The next prime is 492656609209. The reversal of 492656609197 is 791906656294.

It is a happy number.

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 402674008356 + 89982600841 = 634566^2 + 299971^2 .

It is a cyclic number.

It is not a de Polignac number, because 492656609197 - 2⁷ = 492656609069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (492656609177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14489900254 + ... + 14489900287.

It is an arithmetic number, because the mean of its divisors is an integer number (130409102439).

Almost surely, 2^492656609197 is an apocalyptic number.

It is an amenable number.

492656609197 is a deficient number, since it is larger than the sum of its proper divisors (28979800559).

492656609197 is a wasteful number, since it uses less digits than its factorization.

492656609197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28979800558.

The product of its (nonzero) digits is 44089920, while the sum is 64.

The spelling of 492656609197 in words is "four hundred ninety-two billion, six hundred fifty-six million, six hundred nine thousand, one hundred ninety-seven".