705191920571 has 2 divisors, whose sum is σ = 705191920572. Its totient is φ = 705191920570.

The previous prime is 705191920561. The next prime is 705191920613. The reversal of 705191920571 is 175029191507.

705191920571 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-705191920571 is a prime.

It is not a weakly prime, because it can be changed into another prime (705191920561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 352595960285 + 352595960286.

It is an arithmetic number, because the mean of its divisors is an integer number (352595960286).

Almost surely, 2^705191920571 is an apocalyptic number.

705191920571 is a deficient number, since it is larger than the sum of its proper divisors (1).

705191920571 is an equidigital number, since it uses as much as digits as its factorization.

705191920571 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 198450, while the sum is 47.

The spelling of 705191920571 in words is "seven hundred five billion, one hundred ninety-one million, nine hundred twenty thousand, five hundred seventy-one".