195439126441 has 8 divisors (see below), whose sum is σ = 212516333120. Its totient is φ = 178653838032.

The previous prime is 195439126397. The next prime is 195439126511. The reversal of 195439126441 is 144621934591.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 195439126441 - 2²⁵ = 195405572009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (195439121441) 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, 72978171 + ... + 72980848.

It is an arithmetic number, because the mean of its divisors is an integer number (26564541640).

Almost surely, 2^195439126441 is an apocalyptic number.

It is an amenable number.

195439126441 is a deficient number, since it is larger than the sum of its proper divisors (17077206679).

195439126441 is a wasteful number, since it uses less digits than its factorization.

195439126441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145959135.

The product of its digits is 933120, while the sum is 49.

The spelling of 195439126441 in words is "one hundred ninety-five billion, four hundred thirty-nine million, one hundred twenty-six thousand, four hundred forty-one".