491969194 has 8 divisors (see below), whose sum is σ = 761758848. Its totient is φ = 238049580.

The previous prime is 491969129. The next prime is 491969207.

491969194 is nontrivially palindromic in base 10.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3967432 + ... + 3967555.

It is an arithmetic number, because the mean of its divisors is an integer number (95219856).

Almost surely, 2^491969194 is an apocalyptic number.

491969194 is a deficient number, since it is larger than the sum of its proper divisors (269789654).

491969194 is a wasteful number, since it uses less digits than its factorization.

491969194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7935020.

The product of its digits is 629856, while the sum is 52.

The square root of 491969194 is about 22180.3785810793. The cubic root of 491969194 is about 789.4282002370.

The spelling of 491969194 in words is "four hundred ninety-one million, nine hundred sixty-nine thousand, one hundred ninety-four".