709750656997 has 4 divisors (see below), whose sum is σ = 710082783916. Its totient is φ = 709418530080.

The previous prime is 709750656983. The next prime is 709750657013. The reversal of 709750656997 is 799656057907.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 178650774241 + 531099882756 = 422671^2 + 728766^2 .

It is a cyclic number.

It is not a de Polignac number, because 709750656997 - 2¹⁵ = 709750624229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (709750656397) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 166060254 + ... + 166064527.

It is an arithmetic number, because the mean of its divisors is an integer number (177520695979).

Almost surely, 2^709750656997 is an apocalyptic number.

It is an amenable number.

709750656997 is a deficient number, since it is larger than the sum of its proper divisors (332126919).

709750656997 is a wasteful number, since it uses less digits than its factorization.

709750656997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332126918.

The product of its (nonzero) digits is 225042300, while the sum is 70.

The spelling of 709750656997 in words is "seven hundred nine billion, seven hundred fifty million, six hundred fifty-six thousand, nine hundred ninety-seven".