2909081212 has 24 divisors (see below), whose sum is σ = 5135118800. Its totient is φ = 1441950336.

The previous prime is 2909081209. The next prime is 2909081213. The reversal of 2909081212 is 2121809092.

It is a super-2 number, since 2×2909081212² = 16925506996022777888, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2909081213) by changing a digit.

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, 261214 + ... + 272122.

Almost surely, 2^2909081212 is an apocalyptic number.

It is an amenable number.

2909081212 is a deficient number, since it is larger than the sum of its proper divisors (2226037588).

2909081212 is a wasteful number, since it uses less digits than its factorization.

2909081212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11485 (or 11483 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 34.

The square root of 2909081212 is about 53935.8991025458. The cubic root of 2909081212 is about 1427.5301248393.

The spelling of 2909081212 in words is "two billion, nine hundred nine million, eighty-one thousand, two hundred twelve".