491298568104 has 64 divisors (see below), whose sum is σ = 1230442012800. Its totient is φ = 163473640704.

The previous prime is 491298568099. The next prime is 491298568193. The reversal of 491298568104 is 401865892194.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60523054 + ... + 60531170.

It is an arithmetic number, because the mean of its divisors is an integer number (19225656450).

Almost surely, 2^491298568104 is an apocalyptic number.

It is an amenable number.

491298568104 is an abundant number, since it is smaller than the sum of its proper divisors (739143444696).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

491298568104 is a wasteful number, since it uses less digits than its factorization.

491298568104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12322 (or 12318 counting only the distinct ones).

The product of its (nonzero) digits is 4976640, while the sum is 57.

The spelling of 491298568104 in words is "four hundred ninety-one billion, two hundred ninety-eight million, five hundred sixty-eight thousand, one hundred four".