494391706724 has 6 divisors (see below), whose sum is σ = 865185486774. Its totient is φ = 247195853360.

The previous prime is 494391706681. The next prime is 494391706741. The reversal of 494391706724 is 427607193494.

It can be written as a sum of positive squares in only one way, i.e., 353646681124 + 140745025600 = 594682^2 + 375160^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 494391706724.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61798963337 + ... + 61798963344.

It is an arithmetic number, because the mean of its divisors is an integer number (144197581129).

Almost surely, 2^494391706724 is an apocalyptic number.

It is an amenable number.

494391706724 is a deficient number, since it is larger than the sum of its proper divisors (370793780050).

494391706724 is a wasteful number, since it uses less digits than its factorization.

494391706724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123597926685 (or 123597926683 counting only the distinct ones).

The product of its (nonzero) digits is 9144576, while the sum is 56.

The spelling of 494391706724 in words is "four hundred ninety-four billion, three hundred ninety-one million, seven hundred six thousand, seven hundred twenty-four".