84539490816 has 160 divisors (see below), whose sum is σ = 246069964800. Its totient is φ = 25578721280.

The previous prime is 84539490779. The next prime is 84539490839. The reversal of 84539490816 is 61809493548.

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, 12144745 + ... + 12151703.

It is an arithmetic number, because the mean of its divisors is an integer number (1537937280).

Almost surely, 2^84539490816 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 84539490816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (123034982400).

84539490816 is an abundant number, since it is smaller than the sum of its proper divisors (161530473984).

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

84539490816 is a wasteful number, since it uses less digits than its factorization.

84539490816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7710 (or 7694 counting only the distinct ones).

The product of its (nonzero) digits is 7464960, while the sum is 57.

The spelling of 84539490816 in words is "eighty-four billion, five hundred thirty-nine million, four hundred ninety thousand, eight hundred sixteen".