491305624908 has 24 divisors (see below), whose sum is σ = 1310148333312. Its totient is φ = 140373035664.

The previous prime is 491305624907. The next prime is 491305624939. The reversal of 491305624908 is 809426503194.

It is not an unprimeable number, because it can be changed into a prime (491305624907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2924438160 + ... + 2924438327.

It is an arithmetic number, because the mean of its divisors is an integer number (54589513888).

Almost surely, 2^491305624908 is an apocalyptic number.

It is an amenable number.

491305624908 is an abundant number, since it is smaller than the sum of its proper divisors (818842708404).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

491305624908 is a wasteful number, since it uses less digits than its factorization.

491305624908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5848876501 (or 5848876499 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 51.

The spelling of 491305624908 in words is "four hundred ninety-one billion, three hundred five million, six hundred twenty-four thousand, nine hundred eight".