195881049263 has 4 divisors (see below), whose sum is σ = 195895152288. Its totient is φ = 195866946240.

The previous prime is 195881049227. The next prime is 195881049341. The reversal of 195881049263 is 362940188591.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-195881049263 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 195881049199 and 195881049208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195881049863) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7030658 + ... + 7058463.

It is an arithmetic number, because the mean of its divisors is an integer number (48973788072).

Almost surely, 2^195881049263 is an apocalyptic number.

195881049263 is a deficient number, since it is larger than the sum of its proper divisors (14103025).

195881049263 is a wasteful number, since it uses less digits than its factorization.

195881049263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14103024.

The product of its (nonzero) digits is 3732480, while the sum is 56.

The spelling of 195881049263 in words is "one hundred ninety-five billion, eight hundred eighty-one million, forty-nine thousand, two hundred sixty-three".