491316077822 has 32 divisors (see below), whose sum is σ = 810458503200. Its totient is φ = 222478704000.

The previous prime is 491316077821. The next prime is 491316077827. The reversal of 491316077822 is 228770613194.

It is a super-3 number, since 3×491316077822³ (a number of 36 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (491316077821) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2095829 + ... + 2318432.

It is an arithmetic number, because the mean of its divisors is an integer number (25326828225).

Almost surely, 2^491316077822 is an apocalyptic number.

491316077822 is a deficient number, since it is larger than the sum of its proper divisors (319142425378).

491316077822 is a wasteful number, since it uses less digits than its factorization.

491316077822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4414412.

The product of its (nonzero) digits is 1016064, while the sum is 50.

The spelling of 491316077822 in words is "four hundred ninety-one billion, three hundred sixteen million, seventy-seven thousand, eight hundred twenty-two".