84821409792 has 368 divisors, whose sum is σ = 289910257920. Its totient is φ = 24008196096.

The previous prime is 84821409773. The next prime is 84821409847. The reversal of 84821409792 is 29790412848.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 792723403 + ... + 792723509.

Almost surely, 2^84821409792 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 84821409792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (144955128960).

84821409792 is an abundant number, since it is smaller than the sum of its proper divisors (205088848128).

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

84821409792 is an frugal number, since it uses more digits than its factorization.

84821409792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167 (or 119 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 54.

The spelling of 84821409792 in words is "eighty-four billion, eight hundred twenty-one million, four hundred nine thousand, seven hundred ninety-two".