1800650812 has 12 divisors (see below), whose sum is σ = 3336500160. Its totient is φ = 847365056.

The previous prime is 1800650783. The next prime is 1800650837. The reversal of 1800650812 is 2180560081.

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, 13240012 + ... + 13240147.

It is an arithmetic number, because the mean of its divisors is an integer number (278041680).

Almost surely, 2^1800650812 is an apocalyptic number.

It is an amenable number.

1800650812 is a deficient number, since it is larger than the sum of its proper divisors (1535849348).

1800650812 is a wasteful number, since it uses less digits than its factorization.

1800650812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26480180 (or 26480178 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 31.

The square root of 1800650812 is about 42434.0760710069. The cubic root of 1800650812 is about 1216.5869877471.

The spelling of 1800650812 in words is "one billion, eight hundred million, six hundred fifty thousand, eight hundred twelve".