705128690659 has 2 divisors, whose sum is σ = 705128690660. Its totient is φ = 705128690658.

The previous prime is 705128690587. The next prime is 705128690681. The reversal of 705128690659 is 956096821507.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 705128690659 - 2¹¹ = 705128688611 is a prime.

It is not a weakly prime, because it can be changed into another prime (705128690699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 352564345329 + 352564345330.

It is an arithmetic number, because the mean of its divisors is an integer number (352564345330).

Almost surely, 2^705128690659 is an apocalyptic number.

705128690659 is a deficient number, since it is larger than the sum of its proper divisors (1).

705128690659 is an equidigital number, since it uses as much as digits as its factorization.

705128690659 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8164800, while the sum is 58.

The spelling of 705128690659 in words is "seven hundred five billion, one hundred twenty-eight million, six hundred ninety thousand, six hundred fifty-nine".