9999993237697 has 4 divisors (see below), whose sum is σ = 10526308671280. Its totient is φ = 9473677804116.

The previous prime is 9999993237691. The next prime is 9999993237721. The reversal of 9999993237697 is 7967323999999.

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.

It is a cyclic number.

It is not a de Polignac number, because 9999993237697 - 2⁴³ = 1203900215489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9999993237691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 263157716763 + ... + 263157716800.

It is an arithmetic number, because the mean of its divisors is an integer number (2631577167820).

Almost surely, 2^{9999993237697} is an apocalyptic number.

It is an amenable number.

9999993237697 is a deficient number, since it is larger than the sum of its proper divisors (526315433583).

9999993237697 is a wasteful number, since it uses less digits than its factorization.

9999993237697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 526315433582.

The product of its digits is 25311471948, while the sum is 91.

The spelling of 9999993237697 in words is "nine trillion, nine hundred ninety-nine billion, nine hundred ninety-three million, two hundred thirty-seven thousand, six hundred ninety-seven".