999992999999 has 24 divisors (see below), whose sum is σ = 1215087648768. Its totient is φ = 806014281600.

The previous prime is 999992999987. The next prime is 999993000037. The reversal of 999992999999 is 999999299999.

It is not a de Polignac number, because 999992999999 - 2²⁰ = 999991951423 is a prime.

999992999999 is a modest number, since divided by 999999 gives 999992 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 999992999899 and 999992999908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (999992999099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2113742 + ... + 2543204.

It is an arithmetic number, because the mean of its divisors is an integer number (50628652032).

Almost surely, 2^999992999999 is an apocalyptic number.

999992999999 is a deficient number, since it is larger than the sum of its proper divisors (215094648769).

999992999999 is a wasteful number, since it uses less digits than its factorization.

999992999999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 430655 (or 430638 counting only the distinct ones).

The product of its digits is 62762119218, while the sum is 101.

It can be divided in two parts, 999992 and 999999, that added together give a palindrome (1999991).

The spelling of 999992999999 in words is "nine hundred ninety-nine billion, nine hundred ninety-two million, nine hundred ninety-nine thousand, nine hundred ninety-nine".