1851483816 has 384 divisors, whose sum is σ = 6464640000. Its totient is φ = 475517952.

The previous prime is 1851483793. The next prime is 1851483833. The reversal of 1851483816 is 6183841581.

It is an unprimeable number.

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 95 ways as a sum of consecutive naturals, for example, 23436465 + ... + 23436543.

It is an arithmetic number, because the mean of its divisors is an integer number (16835000).

Almost surely, 2^1851483816 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1851483816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3232320000).

1851483816 is an abundant number, since it is smaller than the sum of its proper divisors (4613156184).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1851483816 is a wasteful number, since it uses less digits than its factorization.

1851483816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198 (or 177 counting only the distinct ones).

The product of its digits is 184320, while the sum is 45.

The square root of 1851483816 is about 43028.8718885355. The cubic root of 1851483816 is about 1227.9291428167.

The spelling of 1851483816 in words is "one billion, eight hundred fifty-one million, four hundred eighty-three thousand, eight hundred sixteen".