194841252128 has 48 divisors (see below), whose sum is σ = 388084851000. Its totient is φ = 96281044992.

The previous prime is 194841252127. The next prime is 194841252131. The reversal of 194841252128 is 821252148491.

194841252128 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 191028436624 + 3812815504 = 437068^2 + 61748^2 .

It is a super-2 number, since 2×194841252128² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (194841252121) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 6561218 + ... + 6590846.

Almost surely, 2^194841252128 is an apocalyptic number.

It is an amenable number.

194841252128 is a deficient number, since it is larger than the sum of its proper divisors (193243598872).

194841252128 is a wasteful number, since it uses less digits than its factorization.

194841252128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32037 (or 32029 counting only the distinct ones).

The product of its digits is 368640, while the sum is 47.

The spelling of 194841252128 in words is "one hundred ninety-four billion, eight hundred forty-one million, two hundred fifty-two thousand, one hundred twenty-eight".