705438720001 has 2 divisors, whose sum is σ = 705438720002. Its totient is φ = 705438720000.

The previous prime is 705438719963. The next prime is 705438720011. The reversal of 705438720001 is 100027834507.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 661359297600 + 44079422401 = 813240^2 + 209951^2 .

It is a cyclic number.

It is not a de Polignac number, because 705438720001 - 2¹⁹ = 705438195713 is a prime.

It is not a weakly prime, because it can be changed into another prime (705438720011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 352719360000 + 352719360001.

It is an arithmetic number, because the mean of its divisors is an integer number (352719360001).

Almost surely, 2^705438720001 is an apocalyptic number.

It is an amenable number.

705438720001 is a deficient number, since it is larger than the sum of its proper divisors (1).

705438720001 is an equidigital number, since it uses as much as digits as its factorization.

705438720001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 47040, while the sum is 37.

The spelling of 705438720001 in words is "seven hundred five billion, four hundred thirty-eight million, seven hundred twenty thousand, one".