194043774016 has 189 divisors, whose sum is σ = 424632435087. Its totient is φ = 87959838720.

The previous prime is 194043773993. The next prime is 194043774017. The reversal of 194043774016 is 610477340491.

The square root of 194043774016 is 440504.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 13670286400 + 180373487616 = 116920^2 + 424704^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (194043774017) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 2456250265 + ... + 2456250343.

Almost surely, 2^194043774016 is an apocalyptic number.

194043774016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

194043774016 is the 440504-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 194043774016

194043774016 is an abundant number, since it is smaller than the sum of its proper divisors (230588661071).

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

194043774016 is an frugal number, since it uses more digits than its factorization.

194043774016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286 (or 139 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 46.

The spelling of 194043774016 in words is "one hundred ninety-four billion, forty-three million, seven hundred seventy-four thousand, sixteen".