84717408816 has 120 divisors (see below), whose sum is σ = 246366731520. Its totient is φ = 28182344256.

The previous prime is 84717408803. The next prime is 84717408821. The reversal of 84717408816 is 61880471748.

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1934005 + ... + 1977323.

It is an arithmetic number, because the mean of its divisors is an integer number (2053056096).

Almost surely, 2^84717408816 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 84717408816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (123183365760).

84717408816 is an abundant number, since it is smaller than the sum of its proper divisors (161649322704).

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

84717408816 is a wasteful number, since it uses less digits than its factorization.

84717408816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43845 (or 43827 counting only the distinct ones).

The product of its (nonzero) digits is 2408448, while the sum is 54.

The spelling of 84717408816 in words is "eighty-four billion, seven hundred seventeen million, four hundred eight thousand, eight hundred sixteen".