491729646048 has 48 divisors (see below), whose sum is σ = 1291003773696. Its totient is φ = 163882776960.

The previous prime is 491729646029. The next prime is 491729646137. The reversal of 491729646048 is 840646927194.

It is a tau number, because it is divible by the number of its divisors (48).

It is a junction number, because it is equal to n+sod(n) for n = 491729645982 and 491729646000.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 164265 + ... + 1005207.

It is an arithmetic number, because the mean of its divisors is an integer number (26895911952).

Almost surely, 2^491729646048 is an apocalyptic number.

491729646048 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

491729646048 is an abundant number, since it is smaller than the sum of its proper divisors (799274127648).

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

491729646048 is a wasteful number, since it uses less digits than its factorization.

491729646048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 847047 (or 847039 counting only the distinct ones).

The product of its (nonzero) digits is 20901888, while the sum is 60.

The spelling of 491729646048 in words is "four hundred ninety-one billion, seven hundred twenty-nine million, six hundred forty-six thousand, forty-eight".