9789355879999 has 8 divisors (see below), whose sum is σ = 9792721501200. Its totient is φ = 9785990760000.

The previous prime is 9789355879987. The next prime is 9789355880069. The reversal of 9789355879999 is 9999785539879.

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 9789355879999 - 2⁷ = 9789355879871 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9789355879999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9789355879799) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41265777 + ... + 41502325.

It is an arithmetic number, because the mean of its divisors is an integer number (1224090187650).

Almost surely, 2^{9789355879999} is an apocalyptic number.

9789355879999 is a deficient number, since it is larger than the sum of its proper divisors (3365621201).

9789355879999 is a wasteful number, since it uses less digits than its factorization.

9789355879999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250601.

The product of its digits is 124994923200, while the sum is 97.

The spelling of 9789355879999 in words is "nine trillion, seven hundred eighty-nine billion, three hundred fifty-five million, eight hundred seventy-nine thousand, nine hundred ninety-nine".