9718491207471 has 8 divisors (see below), whose sum is σ = 13521379071360. Its totient is φ = 6197298740952.

The previous prime is 9718491207371. The next prime is 9718491207473. The reversal of 9718491207471 is 1747021948179.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 9718491207471 - 2⁴³ = 922398185263 is a prime.

It is a super-3 number, since 3×9718491207471³ (a number of 40 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9718491207473) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70423849261 + ... + 70423849398.

It is an arithmetic number, because the mean of its divisors is an integer number (1690172383920).

Almost surely, 2^{9718491207471} is an apocalyptic number.

9718491207471 is a deficient number, since it is larger than the sum of its proper divisors (3802887863889).

9718491207471 is a wasteful number, since it uses less digits than its factorization.

9718491207471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140847698685.

The product of its (nonzero) digits is 7112448, while the sum is 60.

The spelling of 9718491207471 in words is "nine trillion, seven hundred eighteen billion, four hundred ninety-one million, two hundred seven thousand, four hundred seventy-one".