491227805116 has 12 divisors (see below), whose sum is σ = 877939056288. Its totient is φ = 240388074752.

The previous prime is 491227805113. The next prime is 491227805191. The reversal of 491227805116 is 611508722194.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (491227805113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1306456741 + ... + 1306457116.

It is an arithmetic number, because the mean of its divisors is an integer number (73161588024).

Almost surely, 2^491227805116 is an apocalyptic number.

It is an amenable number.

491227805116 is a deficient number, since it is larger than the sum of its proper divisors (386711251172).

491227805116 is a wasteful number, since it uses less digits than its factorization.

491227805116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2612913908 (or 2612913906 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 46.

The spelling of 491227805116 in words is "four hundred ninety-one billion, two hundred twenty-seven million, eight hundred five thousand, one hundred sixteen".