706319640049 has 4 divisors (see below), whose sum is σ = 706321621620. Its totient is φ = 706317658480.

The previous prime is 706319640007. The next prime is 706319640067. The reversal of 706319640049 is 940046913607.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 647651533824 + 58668106225 = 804768^2 + 242215^2 .

It is a cyclic number.

It is not a de Polignac number, because 706319640049 - 2²⁷ = 706185422321 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 706319639984 and 706319640011.

It is not an unprimeable number, because it can be changed into a prime (706319646049) 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 3 ways as a sum of consecutive naturals, for example, 291694 + ... + 1223815.

It is an arithmetic number, because the mean of its divisors is an integer number (176580405405).

Almost surely, 2^706319640049 is an apocalyptic number.

It is an amenable number.

706319640049 is a deficient number, since it is larger than the sum of its proper divisors (1981571).

706319640049 is a wasteful number, since it uses less digits than its factorization.

706319640049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1981570.

The product of its (nonzero) digits is 979776, while the sum is 49.

The spelling of 706319640049 in words is "seven hundred six billion, three hundred nineteen million, six hundred forty thousand, forty-nine".