195407840605 has 8 divisors (see below), whose sum is σ = 234515520000. Its totient is φ = 156308864976.

The previous prime is 195407840581. The next prime is 195407840627. The reversal of 195407840605 is 506048704591.

It is a happy number.

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 195407840605 - 2¹¹ = 195407838557 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2126445 + ... + 2216434.

It is an arithmetic number, because the mean of its divisors is an integer number (29314440000).

Almost surely, 2^195407840605 is an apocalyptic number.

It is an amenable number.

195407840605 is a deficient number, since it is larger than the sum of its proper divisors (39107679395).

195407840605 is an equidigital number, since it uses as much as digits as its factorization.

195407840605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4351883.

The product of its (nonzero) digits is 1209600, while the sum is 49.

The spelling of 195407840605 in words is "one hundred ninety-five billion, four hundred seven million, eight hundred forty thousand, six hundred five".