491968869194 has 16 divisors (see below), whose sum is σ = 816067915200. Its totient is φ = 220558894560.

The previous prime is 491968869179. The next prime is 491968869211.

491968869194 is nontrivially palindromic in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 153164294 + ... + 153167505.

It is an arithmetic number, because the mean of its divisors is an integer number (51004244700).

Almost surely, 2^491968869194 is an apocalyptic number.

491968869194 is a deficient number, since it is larger than the sum of its proper divisors (324099046006).

491968869194 is a wasteful number, since it uses less digits than its factorization.

491968869194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306331885.

The product of its digits is 241864704, while the sum is 74.

The spelling of 491968869194 in words is "four hundred ninety-one billion, nine hundred sixty-eight million, eight hundred sixty-nine thousand, one hundred ninety-four".