84317810512 has 20 divisors (see below), whose sum is σ = 175932355060. Its totient is φ = 38915912448.

The previous prime is 84317810441. The next prime is 84317810513. The reversal of 84317810512 is 21501871348.

It can be written as a sum of positive squares in 2 ways, for example, as 51840003856 + 32477806656 = 227684^2 + 180216^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84317810513) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 202686837 + ... + 202687252.

It is an arithmetic number, because the mean of its divisors is an integer number (8796617753).

Almost surely, 2^84317810512 is an apocalyptic number.

It is an amenable number.

84317810512 is an abundant number, since it is smaller than the sum of its proper divisors (91614544548).

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

84317810512 is a wasteful number, since it uses less digits than its factorization.

84317810512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 405374110 (or 405374104 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 40.

The spelling of 84317810512 in words is "eighty-four billion, three hundred seventeen million, eight hundred ten thousand, five hundred twelve".