9712985693777 has 8 divisors (see below), whose sum is σ = 9743684448360. Its totient is φ = 9682304924160.

The previous prime is 9712985693773. The next prime is 9712985693797. The reversal of 9712985693777 is 7773965892179.

It can be written as a sum of positive squares in 4 ways, for example, as 6665531169361 + 3047454524416 = 2581769^2 + 1745696^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 9712985693777 - 2² = 9712985693773 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9712985693771) 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, 3414002 + ... + 5575067.

It is an arithmetic number, because the mean of its divisors is an integer number (1217960556045).

Almost surely, 2^{9712985693777} is an apocalyptic number.

It is an amenable number.

9712985693777 is a deficient number, since it is larger than the sum of its proper divisors (30698754583).

9712985693777 is a wasteful number, since it uses less digits than its factorization.

9712985693777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8992483.

The product of its digits is 2520473760, while the sum is 80.

The spelling of 9712985693777 in words is "nine trillion, seven hundred twelve billion, nine hundred eighty-five million, six hundred ninety-three thousand, seven hundred seventy-seven".