491316602 has 16 divisors (see below), whose sum is σ = 845786880. Its totient is φ = 209681808.

The previous prime is 491316589. The next prime is 491316607. The reversal of 491316602 is 206613194.

It is not an unprimeable number, because it can be changed into a prime (491316607) 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, 70073 + ... + 76764.

It is an arithmetic number, because the mean of its divisors is an integer number (52861680).

Almost surely, 2^491316602 is an apocalyptic number.

491316602 is a deficient number, since it is larger than the sum of its proper divisors (354470278).

491316602 is a wasteful number, since it uses less digits than its factorization.

491316602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147085.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 491316602 is about 22165.6626790177. The cubic root of 491316602 is about 789.0789896945.

Adding to 491316602 its reverse (206613194), we get a palindrome (697929796).

The spelling of 491316602 in words is "four hundred ninety-one million, three hundred sixteen thousand, six hundred two".