491804526316 has 12 divisors (see below), whose sum is σ = 898077830832. Its totient is φ = 235210860368.

The previous prime is 491804526313. The next prime is 491804526319. The reversal of 491804526316 is 613625408194.

It is an interprime number because it is at equal distance from previous prime (491804526313) and next prime (491804526319).

It is a self number, because there is not a number n which added to its sum of digits gives 491804526316.

It is not an unprimeable number, because it can be changed into a prime (491804526313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2672850595 + ... + 2672850778.

It is an arithmetic number, because the mean of its divisors is an integer number (74839819236).

Almost surely, 2^491804526316 is an apocalyptic number.

491804526316 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

It is an amenable number.

491804526316 is a deficient number, since it is larger than the sum of its proper divisors (406273304516).

491804526316 is a wasteful number, since it uses less digits than its factorization.

491804526316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5345701400 (or 5345701398 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 49.

The spelling of 491804526316 in words is "four hundred ninety-one billion, eight hundred four million, five hundred twenty-six thousand, three hundred sixteen".