705774677947 has 2 divisors, whose sum is σ = 705774677948. Its totient is φ = 705774677946.

The previous prime is 705774677893. The next prime is 705774677963. The reversal of 705774677947 is 749776477507.

It is a strong prime.

It is an emirp because it is prime and its reverse (749776477507) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 705774677947 - 2⁷ = 705774677819 is a prime.

It is not a weakly prime, because it can be changed into another prime (705774677147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 352887338973 + 352887338974.

It is an arithmetic number, because the mean of its divisors is an integer number (352887338974).

Almost surely, 2^705774677947 is an apocalyptic number.

705774677947 is a deficient number, since it is larger than the sum of its proper divisors (1).

705774677947 is an equidigital number, since it uses as much as digits as its factorization.

705774677947 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 508243680, while the sum is 70.

The spelling of 705774677947 in words is "seven hundred five billion, seven hundred seventy-four million, six hundred seventy-seven thousand, nine hundred forty-seven".