491768614 has 8 divisors (see below), whose sum is σ = 753347808. Its totient is φ = 240652680.

The previous prime is 491768587. The next prime is 491768617. The reversal of 491768614 is 416867194.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (491768617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2615697 + ... + 2615884.

It is an arithmetic number, because the mean of its divisors is an integer number (94168476).

Almost surely, 2^491768614 is an apocalyptic number.

491768614 is a deficient number, since it is larger than the sum of its proper divisors (261579194).

491768614 is a wasteful number, since it uses less digits than its factorization.

491768614 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5231630.

The product of its digits is 290304, while the sum is 46.

The square root of 491768614 is about 22175.8565561739. The cubic root of 491768614 is about 789.3209001360.

The spelling of 491768614 in words is "four hundred ninety-one million, seven hundred sixty-eight thousand, six hundred fourteen".