851047471184 has 20 divisors (see below), whose sum is σ = 1745898856884. Its totient is φ = 400492927488.

The previous prime is 851047471147. The next prime is 851047471207. The reversal of 851047471184 is 481174740158.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 639245022784 + 211802448400 = 799528^2 + 460220^2 .

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, 1564425227 + ... + 1564425770.

Almost surely, 2^851047471184 is an apocalyptic number.

It is an amenable number.

851047471184 is an abundant number, since it is smaller than the sum of its proper divisors (894851385700).

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

851047471184 is a wasteful number, since it uses less digits than its factorization.

851047471184 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3128851022 (or 3128851016 counting only the distinct ones).

The product of its (nonzero) digits is 1003520, while the sum is 50.

It can be divided in two parts, 851047 and 471184, that added together give a palindrome (1322231).

The spelling of 851047471184 in words is "eight hundred fifty-one billion, forty-seven million, four hundred seventy-one thousand, one hundred eighty-four".