494391706723 has 16 divisors (see below), whose sum is σ = 514479224160. Its totient is φ = 474514432000.

The previous prime is 494391706681. The next prime is 494391706741. The reversal of 494391706723 is 327607193494.

It is a cyclic number.

It is not a de Polignac number, because 494391706723 - 2²⁹ = 493854835811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (494391206723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3591873 + ... + 3726973.

It is an arithmetic number, because the mean of its divisors is an integer number (32154951510).

Almost surely, 2^494391706723 is an apocalyptic number.

494391706723 is a deficient number, since it is larger than the sum of its proper divisors (20087517437).

494391706723 is a wasteful number, since it uses less digits than its factorization.

494391706723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135878.

The product of its (nonzero) digits is 6858432, while the sum is 55.

The spelling of 494391706723 in words is "four hundred ninety-four billion, three hundred ninety-one million, seven hundred six thousand, seven hundred twenty-three".