84519680880 has 160 divisors (see below), whose sum is σ = 267760344384. Its totient is φ = 22046588928.

The previous prime is 84519680857. The next prime is 84519680881. The reversal of 84519680880 is 8808691548.

It is a self number, because there is not a number n which added to its sum of digits gives 84519680880.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84519680881) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4276782 + ... + 4296498.

Almost surely, 2^84519680880 is an apocalyptic number.

84519680880 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 84519680880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (133880172192).

84519680880 is an abundant number, since it is smaller than the sum of its proper divisors (183240663504).

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

84519680880 is a wasteful number, since it uses less digits than its factorization.

84519680880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20123 (or 20117 counting only the distinct ones).

The product of its (nonzero) digits is 4423680, while the sum is 57.

The spelling of 84519680880 in words is "eighty-four billion, five hundred nineteen million, six hundred eighty thousand, eight hundred eighty".