851394312 has 48 divisors (see below), whose sum is σ = 2406119040.
Its totient is φ = 271458528.
The previous prime is 851394307. The next prime is 851394337. The reversal of 851394312 is 213493158.
It is a Harshad number since it is a multiple of its sum of digits (36).
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 11 ways as a sum of consecutive naturals, for example, 255408 + ... + 258719.
It is an arithmetic number, because the mean of its divisors is an integer number (50127480).
Almost surely, 2851394312 is an apocalyptic number.
It is an amenable number.
851394312 is an abundant number, since it is smaller than the sum of its proper divisors (1554724728).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
851394312 is a wasteful number, since it uses less digits than its factorization.
851394312 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 514162 (or 514155 counting only the distinct ones).
The product of its digits is 25920, while the sum is 36.
The square root of 851394312 is about 29178.6619295676.
The cubic root of 851394312 is about 947.7859101019.
The spelling of 851394312 in words is "eight hundred fifty-one million, three hundred ninety-four thousand, three hundred twelve".