207317079317 has 4 divisors (see below), whose sum is σ = 208369450476. Its totient is φ = 206264708160.

The previous prime is 207317079301. The next prime is 207317079331. The reversal of 207317079317 is 713970713702.

It is a happy number.

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 196746360721 + 10570718596 = 443561^2 + 102814^2 .

It is a cyclic number.

It is not a de Polignac number, because 207317079317 - 2⁴ = 207317079301 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 (207317079397) 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, 526185284 + ... + 526185677.

It is an arithmetic number, because the mean of its divisors is an integer number (52092362619).

Almost surely, 2^207317079317 is an apocalyptic number.

It is an amenable number.

207317079317 is a deficient number, since it is larger than the sum of its proper divisors (1052371159).

207317079317 is a wasteful number, since it uses less digits than its factorization.

207317079317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1052371158.

The product of its (nonzero) digits is 388962, while the sum is 47.

The spelling of 207317079317 in words is "two hundred seven billion, three hundred seventeen million, seventy-nine thousand, three hundred seventeen".