195551259383 has 4 divisors (see below), whose sum is σ = 197487410568. Its totient is φ = 193615108200.

The previous prime is 195551259377. The next prime is 195551259413. The reversal of 195551259383 is 383952155591.

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 195551259383 - 2²² = 195547065079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195551279383) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 968075441 + ... + 968075642.

It is an arithmetic number, because the mean of its divisors is an integer number (49371852642).

Almost surely, 2^195551259383 is an apocalyptic number.

195551259383 is a deficient number, since it is larger than the sum of its proper divisors (1936151185).

195551259383 is a wasteful number, since it uses less digits than its factorization.

195551259383 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1936151184.

The product of its digits is 7290000, while the sum is 56.

The spelling of 195551259383 in words is "one hundred ninety-five billion, five hundred fifty-one million, two hundred fifty-nine thousand, three hundred eighty-three".