84578124330 has 144 divisors (see below), whose sum is σ = 255977133984. Its totient is φ = 19319186880.

The previous prime is 84578124307. The next prime is 84578124349. The reversal of 84578124330 is 3342187548.

84578124330 is a `hidden beast` number, since 8 + 4 + 578 + 1 + 2 + 43 + 30 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 7592865 + ... + 7603995.

It is an arithmetic number, because the mean of its divisors is an integer number (1777618986).

Almost surely, 2^84578124330 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 84578124330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (127988566992).

84578124330 is an abundant number, since it is smaller than the sum of its proper divisors (171399009654).

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

84578124330 is a wasteful number, since it uses less digits than its factorization.

84578124330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12881 (or 12871 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 45.

The spelling of 84578124330 in words is "eighty-four billion, five hundred seventy-eight million, one hundred twenty-four thousand, three hundred thirty".