706407878447 has 4 divisors (see below), whose sum is σ = 706411197960. Its totient is φ = 706404558936.

The previous prime is 706407878419. The next prime is 706407878459. The reversal of 706407878447 is 744878704607.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 744878704607 = 727 ⋅1024592441.

It is a cyclic number.

It is not a de Polignac number, because 706407878447 - 2⁶ = 706407878383 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 706407878447.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (706407878147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1316948 + ... + 1774025.

It is an arithmetic number, because the mean of its divisors is an integer number (176602799490).

Almost surely, 2^706407878447 is an apocalyptic number.

706407878447 is a deficient number, since it is larger than the sum of its proper divisors (3319513).

706407878447 is a wasteful number, since it uses less digits than its factorization.

706407878447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3319512.

The product of its (nonzero) digits is 59006976, while the sum is 62.

The spelling of 706407878447 in words is "seven hundred six billion, four hundred seven million, eight hundred seventy-eight thousand, four hundred forty-seven".