84064528812 has 108 divisors (see below), whose sum is σ = 220296832280. Its totient is φ = 24931146240.

The previous prime is 84064528787. The next prime is 84064528817. The reversal of 84064528812 is 21882546048.

It is not an unprimeable number, because it can be changed into a prime (84064528817) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 3194364 + ... + 3220572.

Almost surely, 2^84064528812 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 84064528812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110148416140).

84064528812 is an abundant number, since it is smaller than the sum of its proper divisors (136232303468).

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

84064528812 is a wasteful number, since it uses less digits than its factorization.

84064528812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26332 (or 26272 counting only the distinct ones).

The product of its (nonzero) digits is 983040, while the sum is 48.

The spelling of 84064528812 in words is "eighty-four billion, sixty-four million, five hundred twenty-eight thousand, eight hundred twelve".