491800591414 has 16 divisors (see below), whose sum is σ = 808373422080. Its totient is φ = 222543273960.

The previous prime is 491800591357. The next prime is 491800591439. The reversal of 491800591414 is 414195008194.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 50117454 + ... + 50127265.

It is an arithmetic number, because the mean of its divisors is an integer number (50523338880).

Almost surely, 2^491800591414 is an apocalyptic number.

491800591414 is a deficient number, since it is larger than the sum of its proper divisors (316572830666).

491800591414 is a wasteful number, since it uses less digits than its factorization.

491800591414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100244955.

The product of its (nonzero) digits is 207360, while the sum is 46.

The spelling of 491800591414 in words is "four hundred ninety-one billion, eight hundred million, five hundred ninety-one thousand, four hundred fourteen".