705662923969 has 2 divisors, whose sum is σ = 705662923970. Its totient is φ = 705662923968.

The previous prime is 705662923963. The next prime is 705662924017. The reversal of 705662923969 is 969329266507.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 638739820944 + 66923103025 = 799212^2 + 258695^2 .

It is a cyclic number.

It is not a de Polignac number, because 705662923969 - 2⁷ = 705662923841 is a prime.

It is a super-2 number, since 2×705662923969² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 705662923969.

It is not a weakly prime, because it can be changed into another prime (705662923963) 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, 352831461984 + 352831461985.

It is an arithmetic number, because the mean of its divisors is an integer number (352831461985).

Almost surely, 2^705662923969 is an apocalyptic number.

It is an amenable number.

705662923969 is a deficient number, since it is larger than the sum of its proper divisors (1).

705662923969 is an equidigital number, since it uses as much as digits as its factorization.

705662923969 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 66134880, while the sum is 64.

The spelling of 705662923969 in words is "seven hundred five billion, six hundred sixty-two million, nine hundred twenty-three thousand, nine hundred sixty-nine".