194028786432 has 324 divisors, whose sum is σ = 626701682880. Its totient is φ = 57639149568.

The previous prime is 194028786407. The next prime is 194028786449. The reversal of 194028786432 is 234687820491.

194028786432 is a `hidden beast` number, since 19 + 40 + 2 + 87 + 86 + 432 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 11283313 + ... + 11300495.

Almost surely, 2^194028786432 is an apocalyptic number.

194028786432 is a gapful number since it is divisible by the number (12) 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 194028786432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (313350841440).

194028786432 is an abundant number, since it is smaller than the sum of its proper divisors (432672896448).

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

194028786432 is a wasteful number, since it uses less digits than its factorization.

194028786432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17260 (or 17230 counting only the distinct ones).

The product of its (nonzero) digits is 4644864, while the sum is 54.

The spelling of 194028786432 in words is "one hundred ninety-four billion, twenty-eight million, seven hundred eighty-six thousand, four hundred thirty-two".