195405325387 has 4 divisors (see below), whose sum is σ = 195407691120. Its totient is φ = 195402959656.

The previous prime is 195405325337. The next prime is 195405325403. The reversal of 195405325387 is 783523504591.

195405325387 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 195405325387 - 2¹⁹ = 195404801099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (195405325337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1054312 + ... + 1225717.

It is an arithmetic number, because the mean of its divisors is an integer number (48851922780).

Almost surely, 2^195405325387 is an apocalyptic number.

195405325387 is a deficient number, since it is larger than the sum of its proper divisors (2365733).

195405325387 is an equidigital number, since it uses as much as digits as its factorization.

195405325387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2365732.

The product of its (nonzero) digits is 4536000, while the sum is 52.

The spelling of 195405325387 in words is "one hundred ninety-five billion, four hundred five million, three hundred twenty-five thousand, three hundred eighty-seven".