999999852111111 has 8 divisors (see below), whose sum is σ = 1333647527378544. Its totient is φ = 666509372458880.

The previous prime is 999999852111107. The next prime is 999999852111131. The reversal of 999999852111111 is 111111258999999.

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 999999852111111 - 2² = 999999852111107 is a prime.

It is a super-2 number, since 2×999999852111111² (a number of 31 digits) contains 22 as substring.

It is a nialpdrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (999999852111131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is an upside-down number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39298888956 + ... + 39298914401.

It is an arithmetic number, because the mean of its divisors is an integer number (166705940922318).

Almost surely, 2^{999999852111111} is an apocalyptic number.

999999852111111 is a deficient number, since it is larger than the sum of its proper divisors (333647675267433).

999999852111111 is a wasteful number, since it uses less digits than its factorization.

999999852111111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78597807601.

The product of its digits is 42515280, while the sum is 75.

The spelling of 999999852111111 in words is "nine hundred ninety-nine trillion, nine hundred ninety-nine billion, eight hundred fifty-two million, one hundred eleven thousand, one hundred eleven".