696844717489 has 2 divisors, whose sum is σ = 696844717490. Its totient is φ = 696844717488.

The previous prime is 696844717487. The next prime is 696844717531. The reversal of 696844717489 is 984717448696.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 604635321889 + 92209395600 = 777583^2 + 303660^2 .

It is a cyclic number.

It is not a de Polignac number, because 696844717489 - 2¹ = 696844717487 is a prime.

Together with 696844717487, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (696844717487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 348422358744 + 348422358745.

It is an arithmetic number, because the mean of its divisors is an integer number (348422358745).

Almost surely, 2^696844717489 is an apocalyptic number.

It is an amenable number.

696844717489 is a deficient number, since it is larger than the sum of its proper divisors (1).

696844717489 is an equidigital number, since it uses as much as digits as its factorization.

696844717489 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 585252864, while the sum is 73.

The spelling of 696844717489 in words is "six hundred ninety-six billion, eight hundred forty-four million, seven hundred seventeen thousand, four hundred eighty-nine".