84485391912 has 48 divisors (see below), whose sum is σ = 242274289140. Its totient is φ = 26505220608.

The previous prime is 84485391889. The next prime is 84485391917. The reversal of 84485391912 is 21919358448.

It is a happy number.

84485391912 is a `hidden beast` number, since 8 + 448 + 5 + 3 + 9 + 191 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 79832242116 + 4653149796 = 282546^2 + 68214^2 .

It is a super-3 number, since 3×84485391912³ (a number of 34 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (84485391917) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34510783 + ... + 34513230.

Almost surely, 2^84485391912 is an apocalyptic number.

It is an amenable number.

84485391912 is an abundant number, since it is smaller than the sum of its proper divisors (157788897228).

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

84485391912 is a wasteful number, since it uses less digits than its factorization.

84485391912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69024042 (or 69024035 counting only the distinct ones).

The product of its digits is 2488320, while the sum is 54.

The spelling of 84485391912 in words is "eighty-four billion, four hundred eighty-five million, three hundred ninety-one thousand, nine hundred twelve".