84102728704 has 88 divisors (see below), whose sum is σ = 170492632128. Its totient is φ = 41460879360.

The previous prime is 84102728701. The next prime is 84102728711. The reversal of 84102728704 is 40782720148.

It is not an unprimeable number, because it can be changed into a prime (84102728701) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77087199 + ... + 77088289.

Almost surely, 2^84102728704 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 84102728704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85246316064).

84102728704 is an abundant number, since it is smaller than the sum of its proper divisors (86389903424).

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

84102728704 is a wasteful number, since it uses less digits than its factorization.

84102728704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2101 (or 2083 counting only the distinct ones).

The product of its (nonzero) digits is 200704, while the sum is 43.

The spelling of 84102728704 in words is "eighty-four billion, one hundred two million, seven hundred twenty-eight thousand, seven hundred four".