84184252530 has 96 divisors (see below), whose sum is σ = 235337477760. Its totient is φ = 19216834560.

The previous prime is 84184252463. The next prime is 84184252543. The reversal of 84184252530 is 3525248148.

It is a super-2 number, since 2×84184252530² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1093195 + ... + 1167665.

It is an arithmetic number, because the mean of its divisors is an integer number (2451432060).

Almost surely, 2^84184252530 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 84184252530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (117668738880).

84184252530 is an abundant number, since it is smaller than the sum of its proper divisors (151153225230).

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

84184252530 is a wasteful number, since it uses less digits than its factorization.

84184252530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75264 (or 75257 counting only the distinct ones).

The product of its (nonzero) digits is 307200, while the sum is 42.

The spelling of 84184252530 in words is "eighty-four billion, one hundred eighty-four million, two hundred fifty-two thousand, five hundred thirty".