491673804701 has 8 divisors (see below), whose sum is σ = 492730927008. Its totient is φ = 490616910000.

The previous prime is 491673804637. The next prime is 491673804887. The reversal of 491673804701 is 107408376194.

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 491673804701 - 2⁶ = 491673804637 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 491673804701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (491673807701) 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, 4691726 + ... + 4795376.

It is an arithmetic number, because the mean of its divisors is an integer number (61591365876).

Almost surely, 2^491673804701 is an apocalyptic number.

It is an amenable number.

491673804701 is a deficient number, since it is larger than the sum of its proper divisors (1057122307).

491673804701 is a wasteful number, since it uses less digits than its factorization.

491673804701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113803.

The product of its (nonzero) digits is 1016064, while the sum is 50.

The spelling of 491673804701 in words is "four hundred ninety-one billion, six hundred seventy-three million, eight hundred four thousand, seven hundred one".