851218982112 has 48 divisors (see below), whose sum is σ = 2234569946112. Its totient is φ = 283724407680.

The previous prime is 851218982063. The next prime is 851218982113. The reversal of 851218982112 is 211289812158.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (851218982113) 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, 1632903 + ... + 2090169.

It is an arithmetic number, because the mean of its divisors is an integer number (46553540544).

Almost surely, 2^851218982112 is an apocalyptic number.

It is an amenable number.

851218982112 is an abundant number, since it is smaller than the sum of its proper divisors (1383350964000).

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

851218982112 is a wasteful number, since it uses less digits than its factorization.

851218982112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 476671 (or 476663 counting only the distinct ones).

The product of its digits is 184320, while the sum is 48.

The spelling of 851218982112 in words is "eight hundred fifty-one billion, two hundred eighteen million, nine hundred eighty-two thousand, one hundred twelve".