491735788841 has 8 divisors (see below), whose sum is σ = 536444417568. Its totient is φ = 447028056000.

The previous prime is 491735788813. The next prime is 491735788883. The reversal of 491735788841 is 148887537194.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 491735788841 - 2¹⁰ = 491735787817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (491735788801) by changing a digit.

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, 1502081 + ... + 1799921.

It is an arithmetic number, because the mean of its divisors is an integer number (67055552196).

Almost surely, 2^491735788841 is an apocalyptic number.

It is an amenable number.

491735788841 is a deficient number, since it is larger than the sum of its proper divisors (44708628727).

491735788841 is a wasteful number, since it uses less digits than its factorization.

491735788841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 447943.

The product of its digits is 54190080, while the sum is 65.

The spelling of 491735788841 in words is "four hundred ninety-one billion, seven hundred thirty-five million, seven hundred eighty-eight thousand, eight hundred forty-one".