709287782897 has 2 divisors, whose sum is σ = 709287782898. Its totient is φ = 709287782896.

The previous prime is 709287782857. The next prime is 709287782941. The reversal of 709287782897 is 798287782907.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 704997008881 + 4290774016 = 839641^2 + 65504^2 .

It is a cyclic number.

It is not a de Polignac number, because 709287782897 - 2³² = 704992815601 is a prime.

It is not a weakly prime, because it can be changed into another prime (709287782857) 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, 354643891448 + 354643891449.

It is an arithmetic number, because the mean of its divisors is an integer number (354643891449).

Almost surely, 2^709287782897 is an apocalyptic number.

It is an amenable number.

709287782897 is a deficient number, since it is larger than the sum of its proper divisors (1).

709287782897 is an equidigital number, since it uses as much as digits as its factorization.

709287782897 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 398297088, while the sum is 74.

The spelling of 709287782897 in words is "seven hundred nine billion, two hundred eighty-seven million, seven hundred eighty-two thousand, eight hundred ninety-seven".