9128909212 has 12 divisors (see below), whose sum is σ = 16407364120. Its totient is φ = 4441090896.

The previous prime is 9128909201. The next prime is 9128909267. The reversal of 9128909212 is 2129098219.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30840762 + ... + 30841057.

Almost surely, 2^9128909212 is an apocalyptic number.

It is an amenable number.

9128909212 is a deficient number, since it is larger than the sum of its proper divisors (7278454908).

9128909212 is a wasteful number, since it uses less digits than its factorization.

9128909212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61681860 (or 61681858 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 43.

The square root of 9128909212 is about 95545.3254324878. The cubic root of 9128909212 is about 2089.9679651386.

The spelling of 9128909212 in words is "nine billion, one hundred twenty-eight million, nine hundred nine thousand, two hundred twelve".