704503644661 has 2 divisors, whose sum is σ = 704503644662. Its totient is φ = 704503644660.

The previous prime is 704503644659. The next prime is 704503644809. The reversal of 704503644661 is 166446305407.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 613764131761 + 90739512900 = 783431^2 + 301230^2 .

It is an emirp because it is prime and its reverse (166446305407) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 704503644661 - 2¹ = 704503644659 is a prime.

Together with 704503644659, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (704503644461) 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 as a sum of consecutive naturals, namely, 352251822330 + 352251822331.

It is an arithmetic number, because the mean of its divisors is an integer number (352251822331).

Almost surely, 2^704503644661 is an apocalyptic number.

It is an amenable number.

704503644661 is a deficient number, since it is larger than the sum of its proper divisors (1).

704503644661 is an equidigital number, since it uses as much as digits as its factorization.

704503644661 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1451520, while the sum is 46.

The spelling of 704503644661 in words is "seven hundred four billion, five hundred three million, six hundred forty-four thousand, six hundred sixty-one".