9717886120479 has 16 divisors (see below), whose sum is σ = 12974815093632. Its totient is φ = 6469775674848.

The previous prime is 9717886120441. The next prime is 9717886120517. The reversal of 9717886120479 is 9740216887179.

It is an interprime number because it is at equal distance from previous prime (9717886120441) and next prime (9717886120517).

It is not a de Polignac number, because 9717886120479 - 2⁹ = 9717886119967 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9717886120379) 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, 22845672 + ... + 23267154.

It is an arithmetic number, because the mean of its divisors is an integer number (810925943352).

Almost surely, 2^{9717886120479} is an apocalyptic number.

9717886120479 is a deficient number, since it is larger than the sum of its proper divisors (3256928973153).

9717886120479 is a wasteful number, since it uses less digits than its factorization.

9717886120479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 431926.

The product of its (nonzero) digits is 85349376, while the sum is 69.

The spelling of 9717886120479 in words is "nine trillion, seven hundred seventeen billion, eight hundred eighty-six million, one hundred twenty thousand, four hundred seventy-nine".