195885962421449 has 8 divisors (see below), whose sum is σ = 198268683917472. Its totient is φ = 193503780203200.

The previous prime is 195885962421407. The next prime is 195885962421463. The reversal of 195885962421449 is 944124269588591.

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 195885962421449 - 2⁴⁰ = 194786450793673 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 195885962421449.

It is not an unprimeable number, because it can be changed into a prime (195885962421649) 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 7 ways as a sum of consecutive naturals, for example, 134088527 + ... + 135541524.

It is an arithmetic number, because the mean of its divisors is an integer number (24783585489684).

Almost surely, 2^{195885962421449} is an apocalyptic number.

It is an amenable number.

195885962421449 is a deficient number, since it is larger than the sum of its proper divisors (2382721496023).

195885962421449 is an equidigital number, since it uses as much as digits as its factorization.

195885962421449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269638887.

The product of its digits is 1791590400, while the sum is 77.

The spelling of 195885962421449 in words is "one hundred ninety-five trillion, eight hundred eighty-five billion, nine hundred sixty-two million, four hundred twenty-one thousand, four hundred forty-nine".