999512735912 has 32 divisors (see below), whose sum is σ = 1902437349120. Its totient is φ = 492199086720.

The previous prime is 999512735909. The next prime is 999512735941. The reversal of 999512735912 is 219537215999.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2539913 + ... + 2906919.

It is an arithmetic number, because the mean of its divisors is an integer number (59451167160).

Almost surely, 2^999512735912 is an apocalyptic number.

It is an amenable number.

999512735912 is a deficient number, since it is larger than the sum of its proper divisors (902924613208).

999512735912 is a wasteful number, since it uses less digits than its factorization.

999512735912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372161 (or 372157 counting only the distinct ones).

The product of its digits is 13778100, while the sum is 62.

The spelling of 999512735912 in words is "nine hundred ninety-nine billion, five hundred twelve million, seven hundred thirty-five thousand, nine hundred twelve".