494391706722 has 24 divisors (see below), whose sum is σ = 1071197200476. Its totient is φ = 164794901856.

The previous prime is 494391706681. The next prime is 494391706741. The reversal of 494391706722 is 227607193494.

494391706722 is a `hidden beast` number, since 494 + 3 + 9 + 1 + 70 + 67 + 22 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 451596096081 + 42795610641 = 672009^2 + 206871^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1520788 + ... + 1817024.

Almost surely, 2^494391706722 is an apocalyptic number.

494391706722 is an abundant number, since it is smaller than the sum of its proper divisors (576805493754).

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

494391706722 is a wasteful number, since it uses less digits than its factorization.

494391706722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388962 (or 388959 counting only the distinct ones).

The product of its (nonzero) digits is 4572288, while the sum is 54.

The spelling of 494391706722 in words is "four hundred ninety-four billion, three hundred ninety-one million, seven hundred six thousand, seven hundred twenty-two".