717157792913 has 4 divisors (see below), whose sum is σ = 717240167280. Its totient is φ = 717075418548.

The previous prime is 717157792909. The next prime is 717157792921. The reversal of 717157792913 is 319297751717.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 319297751717 = 7 ⋅45613964531.

It is a cyclic number.

It is not a de Polignac number, because 717157792913 - 2² = 717157792909 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (717157722913) 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, 41174123 + ... + 41191536.

It is an arithmetic number, because the mean of its divisors is an integer number (179310041820).

Almost surely, 2^717157792913 is an apocalyptic number.

It is an amenable number.

717157792913 is a deficient number, since it is larger than the sum of its proper divisors (82374367).

717157792913 is an equidigital number, since it uses as much as digits as its factorization.

717157792913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82374366.

The product of its digits is 5834430, while the sum is 59.

The spelling of 717157792913 in words is "seven hundred seventeen billion, one hundred fifty-seven million, seven hundred ninety-two thousand, nine hundred thirteen".