196218428184 has 512 divisors, whose sum is σ = 607461120000. Its totient is φ = 58480773120.

The previous prime is 196218428113. The next prime is 196218428191. The reversal of 196218428184 is 481824812691.

196218428184 is a `hidden beast` number, since 1 + 9 + 621 + 8 + 4 + 2 + 8 + 1 + 8 + 4 = 666.

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

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 196218428184.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 729436402 + ... + 729436670.

It is an arithmetic number, because the mean of its divisors is an integer number (1186447500).

Almost surely, 2^196218428184 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 196218428184, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (303730560000).

196218428184 is an abundant number, since it is smaller than the sum of its proper divisors (411242691816).

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

196218428184 is a wasteful number, since it uses less digits than its factorization.

196218428184 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480 (or 470 counting only the distinct ones).

The product of its digits is 1769472, while the sum is 54.

The spelling of 196218428184 in words is "one hundred ninety-six billion, two hundred eighteen million, four hundred twenty-eight thousand, one hundred eighty-four".