999999996312 has 16 divisors (see below), whose sum is σ = 2499999990840. Its totient is φ = 333333332096.

The previous prime is 999999996311. The next prime is 999999996323. The reversal of 999999996312 is 213699999999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (999999996311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20833333233 + ... + 20833333280.

Almost surely, 2^999999996312 is an apocalyptic number.

It is an amenable number.

999999996312 is an abundant number, since it is smaller than the sum of its proper divisors (1499999994528).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

999999996312 is a wasteful number, since it uses less digits than its factorization.

999999996312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41666666522 (or 41666666518 counting only the distinct ones).

The product of its digits is 1549681956, while the sum is 84.

The spelling of 999999996312 in words is "nine hundred ninety-nine billion, nine hundred ninety-nine million, nine hundred ninety-six thousand, three hundred twelve".