705454718993 has 2 divisors, whose sum is σ = 705454718994. Its totient is φ = 705454718992.

The previous prime is 705454718959. The next prime is 705454719029. The reversal of 705454718993 is 399817454507.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 694033949569 + 11420769424 = 833087^2 + 106868^2 .

It is an emirp because it is prime and its reverse (399817454507) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 705454718993 - 2¹⁰ = 705454717969 is a prime.

It is not a weakly prime, because it can be changed into another prime (705454718393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 352727359496 + 352727359497.

It is an arithmetic number, because the mean of its divisors is an integer number (352727359497).

Almost surely, 2^705454718993 is an apocalyptic number.

It is an amenable number.

705454718993 is a deficient number, since it is larger than the sum of its proper divisors (1).

705454718993 is an equidigital number, since it uses as much as digits as its factorization.

705454718993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 38102400, while the sum is 62.

The spelling of 705454718993 in words is "seven hundred five billion, four hundred fifty-four million, seven hundred eighteen thousand, nine hundred ninety-three".