999910012 has 12 divisors (see below), whose sum is σ = 1852774560. Its totient is φ = 470545856.

The previous prime is 999910001. The next prime is 999910019. The reversal of 999910012 is 210019999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (999910019) 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, 7352212 + ... + 7352347.

It is an arithmetic number, because the mean of its divisors is an integer number (154397880).

Almost surely, 2^999910012 is an apocalyptic number.

It is an amenable number.

999910012 is a deficient number, since it is larger than the sum of its proper divisors (852864548).

999910012 is a wasteful number, since it uses less digits than its factorization.

999910012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14704580 (or 14704578 counting only the distinct ones).

The product of its (nonzero) digits is 13122, while the sum is 40.

The square root of 999910012 is about 31621.3537344624. The cubic root of 999910012 is about 999.9700031002.

The spelling of 999910012 in words is "nine hundred ninety-nine million, nine hundred ten thousand, twelve".