709197704249 has 2 divisors, whose sum is σ = 709197704250. Its totient is φ = 709197704248.

The previous prime is 709197704197. The next prime is 709197704291. The reversal of 709197704249 is 942407791907.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 444828972025 + 264368732224 = 666955^2 + 514168^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-709197704249 is a prime.

It is a super-2 number, since 2×709197704249² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (709197704849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 354598852124 + 354598852125.

It is an arithmetic number, because the mean of its divisors is an integer number (354598852125).

Almost surely, 2^709197704249 is an apocalyptic number.

It is an amenable number.

709197704249 is a deficient number, since it is larger than the sum of its proper divisors (1).

709197704249 is an equidigital number, since it uses as much as digits as its factorization.

709197704249 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8001504, while the sum is 59.

The spelling of 709197704249 in words is "seven hundred nine billion, one hundred ninety-seven million, seven hundred four thousand, two hundred forty-nine".