1918967212 has 24 divisors (see below), whose sum is σ = 3420043200. Its totient is φ = 941859216.

The previous prime is 1918967209. The next prime is 1918967227. The reversal of 1918967212 is 2127698191.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 168903 + ... + 179905.

It is an arithmetic number, because the mean of its divisors is an integer number (142501800).

Almost surely, 2^1918967212 is an apocalyptic number.

It is an amenable number.

1918967212 is a deficient number, since it is larger than the sum of its proper divisors (1501075988).

1918967212 is a wasteful number, since it uses less digits than its factorization.

1918967212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11805 (or 11803 counting only the distinct ones).

The product of its digits is 108864, while the sum is 46.

The square root of 1918967212 is about 43806.0179883997. The cubic root of 1918967212 is about 1242.6701073800.

The spelling of 1918967212 in words is "one billion, nine hundred eighteen million, nine hundred sixty-seven thousand, two hundred twelve".