491111000111194 has 12 divisors (see below), whose sum is σ = 782548842738654. Its totient is φ = 231111058875584.

The previous prime is 491111000111131. The next prime is 491111000111197.

491111000111194 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 3 ways, for example, as 481042671309225 + 10068328801969 = 21932685^2 + 3173063^2 .

It is a Harshad number since it is a multiple of its sum of digits (34).

It is not an unprimeable number, because it can be changed into a prime (491111000111197) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 424836504709 + ... + 424836505864.

Almost surely, 2^{491111000111194} is an apocalyptic number.

491111000111194 is a deficient number, since it is larger than the sum of its proper divisors (291437842627460).

491111000111194 is a wasteful number, since it uses less digits than its factorization.

491111000111194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 849673010609 (or 849673010592 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 34.

It can be divided in two parts, 491111000 and 111194, that added together give a palindrome (491222194).

The spelling of 491111000111194 in words is "four hundred ninety-one trillion, one hundred eleven billion, one hundred eleven thousand, one hundred ninety-four".