491611112122107 has 8 divisors (see below), whose sum is σ = 673197198581776. Its totient is φ = 318882883538592.

The previous prime is 491611112122099. The next prime is 491611112122177. The reversal of 491611112122107 is 701221211116194.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 491611112122107 - 2³ = 491611112122099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (491611112122177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2214464468908 + ... + 2214464469129.

It is an arithmetic number, because the mean of its divisors is an integer number (84149649822722).

Almost surely, 2^{491611112122107} is an apocalyptic number.

491611112122107 is a deficient number, since it is larger than the sum of its proper divisors (181586086459669).

491611112122107 is a wasteful number, since it uses less digits than its factorization.

491611112122107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4428928938077.

The product of its (nonzero) digits is 12096, while the sum is 39.

The spelling of 491611112122107 in words is "four hundred ninety-one trillion, six hundred eleven billion, one hundred twelve million, one hundred twenty-two thousand, one hundred seven".