717974963851 has 16 divisors (see below), whose sum is σ = 767666585088. Its totient is φ = 669113308800.

The previous prime is 717974963833. The next prime is 717974963891. The reversal of 717974963851 is 158369479717.

It is not a de Polignac number, because 717974963851 - 2²⁷ = 717840746123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (717974963891) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29423866 + ... + 29448256.

It is an arithmetic number, because the mean of its divisors is an integer number (47979161568).

Almost surely, 2^717974963851 is an apocalyptic number.

717974963851 is a deficient number, since it is larger than the sum of its proper divisors (49691621237).

717974963851 is a wasteful number, since it uses less digits than its factorization.

717974963851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41322.

The product of its digits is 80015040, while the sum is 67.

The spelling of 717974963851 in words is "seven hundred seventeen billion, nine hundred seventy-four million, nine hundred sixty-three thousand, eight hundred fifty-one".