194734325851 has 16 divisors (see below), whose sum is σ = 212443741440. Its totient is φ = 177419037600.

The previous prime is 194734325827. The next prime is 194734325861. The reversal of 194734325851 is 158523437491.

It is a cyclic number.

It is not a de Polignac number, because 194734325851 - 2²¹ = 194732228699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (194734325861) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1048170 + ... + 1219888.

It is an arithmetic number, because the mean of its divisors is an integer number (13277733840).

Almost surely, 2^194734325851 is an apocalyptic number.

194734325851 is a deficient number, since it is larger than the sum of its proper divisors (17709415589).

194734325851 is a wasteful number, since it uses less digits than its factorization.

194734325851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172866.

The product of its digits is 3628800, while the sum is 52.

The spelling of 194734325851 in words is "one hundred ninety-four billion, seven hundred thirty-four million, three hundred twenty-five thousand, eight hundred fifty-one".