491305624907 has 2 divisors, whose sum is σ = 491305624908. Its totient is φ = 491305624906.

The previous prime is 491305624889. The next prime is 491305624939. The reversal of 491305624907 is 709426503194.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 491305624907 - 2¹⁰ = 491305623883 is a prime.

It is not a weakly prime, because it can be changed into another prime (491305620907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 245652812453 + 245652812454.

It is an arithmetic number, because the mean of its divisors is an integer number (245652812454).

Almost surely, 2^491305624907 is an apocalyptic number.

491305624907 is a deficient number, since it is larger than the sum of its proper divisors (1).

491305624907 is an equidigital number, since it uses as much as digits as its factorization.

491305624907 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1632960, while the sum is 50.

The spelling of 491305624907 in words is "four hundred ninety-one billion, three hundred five million, six hundred twenty-four thousand, nine hundred seven".