84173912832 has 72 divisors (see below), whose sum is σ = 224454779584. Its totient is φ = 28004189184.

The previous prime is 84173912773. The next prime is 84173912833. The reversal of 84173912832 is 23821937148.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (84173912833) 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, 296883 + ... + 506445.

Almost surely, 2^84173912832 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 84173912832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112227389792).

84173912832 is an abundant number, since it is smaller than the sum of its proper divisors (140280866752).

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

84173912832 is a wasteful number, since it uses less digits than its factorization.

84173912832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210105 (or 210091 counting only the distinct ones).

The product of its digits is 580608, while the sum is 48.

The spelling of 84173912832 in words is "eighty-four billion, one hundred seventy-three million, nine hundred twelve thousand, eight hundred thirty-two".