194518969848 has 192 divisors, whose sum is σ = 640364175360. Its totient is φ = 52072547328.

The previous prime is 194518969837. The next prime is 194518969873. The reversal of 194518969848 is 848969815491.

194518969848 is a `hidden beast` number, since 1 + 9 + 4 + 518 + 9 + 69 + 8 + 48 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1859761 + ... + 1961567.

It is an arithmetic number, because the mean of its divisors is an integer number (3335230080).

Almost surely, 2^194518969848 is an apocalyptic number.

194518969848 is a gapful number since it is divisible by the number (18) 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 194518969848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (320182087680).

194518969848 is an abundant number, since it is smaller than the sum of its proper divisors (445845205512).

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

194518969848 is a wasteful number, since it uses less digits than its factorization.

194518969848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102066 (or 102059 counting only the distinct ones).

The product of its digits is 179159040, while the sum is 72.

The spelling of 194518969848 in words is "one hundred ninety-four billion, five hundred eighteen million, nine hundred sixty-nine thousand, eight hundred forty-eight".