9999993999999 has 8 divisors (see below), whose sum is σ = 13333412273920. Its totient is φ = 6666619196376.

The previous prime is 9999993999973. The next prime is 9999994000001.

9999993999999 is nontrivially palindromic in base 10.

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

It is not a de Polignac number, because 9999993999999 - 2⁵ = 9999993999967 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9999993999894 and 9999993999903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9999993992999) 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, 10326967 + ... + 11253720.

It is an arithmetic number, because the mean of its divisors is an integer number (1666676534240).

Almost surely, 2^{9999993999999} is an apocalyptic number.

9999993999999 is a deficient number, since it is larger than the sum of its proper divisors (3333418273921).

9999993999999 is a wasteful number, since it uses less digits than its factorization.

9999993999999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21735149.

The product of its digits is 847288609443, while the sum is 111.

The spelling of 9999993999999 in words is "nine trillion, nine hundred ninety-nine billion, nine hundred ninety-three million, nine hundred ninety-nine thousand, nine hundred ninety-nine".