491133121331194 has 16 divisors (see below), whose sum is σ = 756304990771176. Its totient is φ = 239057442246400.

The previous prime is 491133121331191. The next prime is 491133121331197.

491133121331194 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (491133121331191) and next prime (491133121331197).

It can be written as a sum of positive squares in 4 ways, for example, as 147689016591169 + 343444104740025 = 12152737^2 + 18532245^2 .

It is not an unprimeable number, because it can be changed into a prime (491133121331191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (37) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6496088347 + ... + 6496163950.

Almost surely, 2^{491133121331194} is an apocalyptic number.

491133121331194 is a deficient number, since it is larger than the sum of its proper divisors (265171869439982).

491133121331194 is a wasteful number, since it uses less digits than its factorization.

491133121331194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12992252801.

The product of its digits is 209952, while the sum is 46.

The spelling of 491133121331194 in words is "four hundred ninety-one trillion, one hundred thirty-three billion, one hundred twenty-one million, three hundred thirty-one thousand, one hundred ninety-four".