84309311808 has 112 divisors (see below), whose sum is σ = 248444633920. Its totient is φ = 28036108800.

The previous prime is 84309311741. The next prime is 84309311809. The reversal of 84309311808 is 80811390348.

84309311808 is a `hidden beast` number, since 8 + 430 + 9 + 31 + 180 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84309311809) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 669543 + ... + 785433.

It is an arithmetic number, because the mean of its divisors is an integer number (2218255660).

Almost surely, 2^84309311808 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 84309311808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (124222316960).

84309311808 is an abundant number, since it is smaller than the sum of its proper divisors (164135322112).

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

84309311808 is a wasteful number, since it uses less digits than its factorization.

84309311808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116333 (or 116317 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 45.

The spelling of 84309311808 in words is "eighty-four billion, three hundred nine million, three hundred eleven thousand, eight hundred eight".