84785446240 has 96 divisors (see below), whose sum is σ = 218585848320. Its totient is φ = 30821107200.

The previous prime is 84785446189. The next prime is 84785446241. The reversal of 84785446240 is 4264458748.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84785446241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7490185 + ... + 7501495.

It is an arithmetic number, because the mean of its divisors is an integer number (2276935920).

Almost surely, 2^84785446240 is an apocalyptic number.

84785446240 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 84785446240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109292924160).

84785446240 is an abundant number, since it is smaller than the sum of its proper divisors (133800402080).

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

84785446240 is a wasteful number, since it uses less digits than its factorization.

84785446240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15596 (or 15588 counting only the distinct ones).

The product of its (nonzero) digits is 6881280, while the sum is 52.

The spelling of 84785446240 in words is "eighty-four billion, seven hundred eighty-five million, four hundred forty-six thousand, two hundred forty".