84818497899520 has 704 divisors, whose sum is σ = 265011052492800. Its totient is φ = 25257773629440.

The previous prime is 84818497899449. The next prime is 84818497899557. The reversal of 84818497899520 is 2599879481848.

It is a tau number, because it is divible by the number of its divisors (704).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8423721046 + ... + 8423731114.

Almost surely, 2^{84818497899520} is an apocalyptic number.

84818497899520 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 84818497899520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132505526246400).

84818497899520 is an abundant number, since it is smaller than the sum of its proper divisors (180192554593280).

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

84818497899520 is a wasteful number, since it uses less digits than its factorization.

84818497899520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11064 (or 11046 counting only the distinct ones).

The product of its (nonzero) digits is 3344302080, while the sum is 82.

The spelling of 84818497899520 in words is "eighty-four trillion, eight hundred eighteen billion, four hundred ninety-seven million, eight hundred ninety-nine thousand, five hundred twenty".