491111020111194 has 24 divisors (see below), whose sum is σ = 1216084430751840. Its totient is φ = 140317434317448.

The previous prime is 491111020111171. The next prime is 491111020111219.

491111020111194 is a `hidden beast` number, since 491 + 11 + 10 + 20 + 11 + 119 + 4 = 666.

491111020111194 is nontrivially palindromic in base 10.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1948853254284 + ... + 1948853254535.

It is an arithmetic number, because the mean of its divisors is an integer number (50670184614660).

Almost surely, 2^{491111020111194} is an apocalyptic number.

491111020111194 is an abundant number, since it is smaller than the sum of its proper divisors (724973410640646).

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

491111020111194 is a wasteful number, since it uses less digits than its factorization.

491111020111194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3897706508834 (or 3897706508831 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 36.

The spelling of 491111020111194 in words is "four hundred ninety-one trillion, one hundred eleven billion, twenty million, one hundred eleven thousand, one hundred ninety-four".