705143256427 has 2 divisors, whose sum is σ = 705143256428. Its totient is φ = 705143256426.

The previous prime is 705143256361. The next prime is 705143256439. The reversal of 705143256427 is 724652341507.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 705143256427 - 2¹⁹ = 705142732139 is a prime.

It is not a weakly prime, because it can be changed into another prime (705143256497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 352571628213 + 352571628214.

It is an arithmetic number, because the mean of its divisors is an integer number (352571628214).

Almost surely, 2^705143256427 is an apocalyptic number.

705143256427 is a deficient number, since it is larger than the sum of its proper divisors (1).

705143256427 is an equidigital number, since it uses as much as digits as its factorization.

705143256427 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1411200, while the sum is 46.

The spelling of 705143256427 in words is "seven hundred five billion, one hundred forty-three million, two hundred fifty-six thousand, four hundred twenty-seven".